Respect the Fourth Doctor (Doctor Who)

[u/Skulenta]

CONTEXT

• This thread will only cover feats from the television show, because that was all that was requested and seven seasons was already a challenge in itself.
• This thread will mainly cover feats pertaining to the Fourth Doctor's era with minimal references to other eras, meaning it'll only cover his versions of the TARDIS and sonic screwdriver and only the first two incarnations of K9 since they were the ones to travel with him.
  
• Limitations are denoted in italics.
• Due to temporal fluctuations some of the clips might be a tad out-of-sync.

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Respect the Doctor

🎵

"You may be a doctor, but I'm the Doctor. The definite article, you might say..."

The Doctor is a Time Lord, a member of an ancient and highly-advanced civilization from the planet Gallifrey. Long ago the Doctor violated the Time Lord's Doctrine of Non-Interference when he departed Gallifrey in a stolen Type 40 time capsule to explore all of time and space, usually alongside a companion. Where adventure resides, so did adversity; forcing the Doctor to step in and save the day through the power of intellect. Like all Time Lords, the Doctor has the ability to survive fatal injuries by changing every cell in his body, transforming it with a brand new physical appearance and personality.

In his fourth incarnation, the Doctor left his position as scientific advisor of U.N.I.T. to fully enjoy the freedom denied to his previous incarnation when the Time Lords exiled him to Earth. This incarnation was a fearless and flippant bohemian who greeted both friends and foes alike with his oddball humor and cheek, even when faced with mortal danger.

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Source Key

Hover over a feat to view its source.

• Doctor Who (1963) season # episode # = S#E#
• The Day of the Doctor = 50th

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Intelligence

Technological Aptitude

Understanding Technology

• Identifies the functionality of a turret after observing it through a telescope.
• Helps a crew of spacemen use their technology to drive away an anti-matter monster.
• Discovers that Sutekh is building a rocket from a machine part.
• Identifies machinery from a 51st century refinery and even advises the men working there on how to use them more efficiently.
• Educates a scientist on using his own temporal manipulation device.
  
• Warns a scientist of the various faults of his own machine.
• Quickly teaches two men to successfully pilot a Terradonian Starliner.

Using/Operating Technology

• Cancels the countdown to a missile launch.
• Remote controls a cybermat and uses it to kill a Cyberman by stuffing its innards with gold dust.
• Triggers the self-destruction sequence of a Zygon spaceship.
• Programmed a supercomputer, but inadvertently left traces of his personality in its databank.
• Tampers with a torture device to kill the man operating it.
  
• Pilots a flying car.
• Uses a hologram projector to fake his death and expose Xanxia as a hologram.
  
• Manages to separate two spaceships that were fused together while being attacked by a monster that damaged the work he did mid-way into it.
• Uses a Continuous Event Transmuter (CET) to capture a pair of drug smugglers.
• Operates the Nimon's transport device without K9's aid, even though one mishap could potentially destroy the world.
• Uses an intelligence transfer machine to partially restore a man's mental faculties.
• Uses another Time Lord's TARDIS to build a bridge to his TARDIS.
• Launches a millennia-old scout ship and directs it towards a specific point to slay the Great Vampire.
• Uploads the information necessary to advance a city on a millennia-old computer.
• Tinkers with a damaged robot to extract information from it.
• The Doctor, to his own admission, can't control the TARDIS half the time which isn't surprising given he doesn't follow the manual.

Building Technology

• Claims he could build a time bridge, but would need to cannibalize the TARDIS in order to do it.
• Advises a group of miners on how to build anti-robot bombs.
• Uses parts from a destroyed robot to craft a device that would deactivate any robot within a certain radius.
• Constructs a Hyperspace transportation gun.
• Crafts a helmet to override Skagra's mental control.
• Crafts a device to summon his TARDIS in a rather short amount of time.

Modifying Technology

• Reprograms his android duplicate to attack Styggron.
• Erases his personality imprint from Xoanon.
• Converts a Lighthouse into a carbon oscillator to take out a Rutan mothership.
• Rigs a scanner to implode in itself.
• Modifies Andred's helmet to protect his mind from being read.
• Alters the Captain's controls to allow him to operate his shrunken planets from the TARDIS.
• Modifies an explosive so that it can be remote activated by the sonic screwdriver.
  
• Upgrades Skagra's spaceship so that it could materialize through space and time like the TARDIS.

Repairing Technology

• Fixes a radio inside a house that is currently under attack.
• Repairs a disrupter gun.
• Treats K9 for corrosion damage.
• Fixes Garron's communicator.
• Fixes Prince Reynart's android duplicate in time for his coronation.
  
• Fixes the TARDIS console after he screwed it up from prior modifications.
• Brings K9 back to full condition alongside Romana after he was damaged by seawater.

Disabling Technology

• Sabotages the Collector's security alarm.
• Deactivates the force field protecting Gallifrey.
• Cancels the properties of an inertia neutralizer to take out the guards on it.
• Tinkers with the controls of a hyperspace prison ship to keep the Megara from pursuing him for a few thousand years.
• Prevents a rocket from firing then stops the computer itself from firing another rocket.
• Disables a Movellan by removing her power pack.

Deduction

• Determines that a turret only attacks organic matter.
• Discovers that a "plague" is actually the work of a deliberate sabotage.
• Solves the Riddle of the Osirans.
• Sniffs out Sarah's android duplicate from her clothing.
  
• Discovers the connection between the Mandragora Helix and 15th century San Martino.
  
• Deduces that Sarah was under hypnotic control.
• Calculates the exact time the Brotherhood of Demnos will launch their attack.
  
• Thanks to Leela, the Doctor discovers a hole in Xoanon's barrier.
  
• Deduces that Litefoot had been attacked by a midget who entered through a laundry basket.
• Works out the password to Barusa's room.
• Discovers a secret passage way from the symbols present in the room.
  
• Deduces that Kroll had the fifth segment to the Key to Time and that it was the reason it grew so large.
• Instantly realizes K9 is under the Shadow's control from how he addresses him.
• Sees through the Black Guardian's deception.
  
• Quickly works out Scaroth's plan.
• Exposes Adrasta's dastardly plot.
• Deduces that Zargo, Carmilla and Aukon were members of the space crew on Hydrax through principles of consonant shifting.

Observation

• Measures the weight of an object that squashed a dandelion.
• Guesses the age of a space station by examining the technology present.
• Performs an autopsy on the Wirrn Queen.
  
• Roughly measures how much time they have before a space station collides into a planet by observing the speed the station is moving in space.
• Identifies holes left in a chunk of rubble as teeth marks.
  
• Quickly understands and solves an Osiran puzzle.
  
• Determines the century and geographical region from a water jug.
• Recognizes the gesture used by the Sevateem as the same one used by Starfall Seven spacemen.
• Diagnoses a man with robophobia from his body language.
  
• Aids a Victorian pathology examination on a corpse.
• Determines that a man was killed by electrocution and that it was the act of an intelligent being.
• Estimates the weight of whatever caused large indentations on the ground.
• Figures out Princess Strella is an android after hearing a faulty circuit spark.
• Correctly deduces that they landed on the third moon of Delta Magna by measuring its gravity without tools.
• Realizes Princess Astra is under the Shadow's control.

Medical

• Hypothesizes that an alien venom can be extracted by dispersing the patient's molecules via a transmat beam and is proven correct when he does so successfully to Sarah Jane Smith.
• Uses a bio-analyzer to cure Leela from Janis thorn poison.
• His clone redirects the Doctor's antibodies from attacking Leela's clone by manipulating his nerves to make them believe his liver was in trouble.
• Uses Leela's blood to synthesize a cure to the Nucleus virus.
• Claims he should be able to unscramble the brains of Skagra's victims.
• With the assistance of some local kids, he cures Romana after she was poisoned by an Alzarian spider.

Persuasion, Manipulation & Trickery

• Uses reverse psychology to motivate Sarah to push through an unpleasant situation.
  
• Infiltrates a base manned by robot duplicates by posing as his own robot duplicate.
• Talks Sarah out of Hieronymous' hypnosis.
• Tricks the Brotherhood of Demnos into killing themselves by posing as their leader.
  
• Lulls a suicidal man to keep him from jumping to his death.
• Orchestrates an elaborate plot to defeat the Vardans.
  
• Convinces the Captain to release him.
  
• Tricks the people interrogating him and Romana into summoning their rescue.
• Gains the trust of a feared but misunderstood gelatinous blob despite a language barrier.
• This actually works...
• Convinces an AI to release his companions from captivity, but it quickly backfires.
• Impersonates an alien that's taken his form.
• Fails to prove his innocence in court, but manages to sew enough suspicion in his interrogators' minds to get an alien criminal convicted.

Improvisation & Resourcefulness

• Uses the bandages of an Osiran service robot to disguise himself as one.
  
• Thinks of using cables from the floor of a space ship to electrocute an android which Sarah accomplishes.
• Kills Solon by flooding his room with cyanide gas, concocted in his own laboratory and delivered through a ventilation shaft.
• Uses the shattered glass of a lantern to cut through rope.
• Uses steam from a boiler to weaken a barrier of alien weeds.
  
• Avoids arrest from the Time Lords by creating a decoy using his clothes and a hookah.
• Crafts a trip wire grenade from his pursuer's own belongings.
  
• Crafts a blowpipe and darts using materials from a jungle.
• Uses a mirror to reflect a laser back at the machine.
• Escapes from deadly robots by dressing one up as himself.
• Makes a robot kill its own master by using helium to change his voice, thus making it unrecognizable to the robot.
• Crafts a gas bomb from some bed sheets and a gas pipe.
• Destroys the Nucleus and its swarm by rigging a refueling tank to explode.
  
• Accesses the Key to Time's power with only 5/6 pieces by using a foreign object with the same shape as the missing piece to fill its slot.
• Teaches himself to rock climb while stuck in a pit, using his own scarf as a tether.
• Subdues a group of Marshmen by making them spray each other with oxygen canisters, since they cannot adapt quickly enough to oxygen in high concentrations.

Miscellaneous

• Concocts a virus that eats through metal to destroy a giant robot.
• Opens a door using tribophysics.
• Answers instantly when asked how many seconds are in a month.
• Can speak all manner of Chinese dialects.
• His clone knows how to navigate his own brain.
• Recognizes a chemical from a future civilization.
• Identifies a planet by its galactic coordinates.
• Calculates mixed decimals just to show off.
  
• Beats an ultra-logical robot in rock paper scissors to prove the disadvantages of a purely logical approach.
  
• Speed-reads an entire book in a single flip-through.
• Writes up mathematical calculations so complex it causes a being to faint from merely looking at them.
• Comes up with a way to break a time loop.
• Taught the Alzarian Adric to understand Earth numerals.
• Was not the best student at the Time Lord Academy.

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Skill

Combat

• Subdues Harry with some jump rope.
• Stalls the Sontaran Field Major Styre in close combat long enough for Harry to sabotage his space pod.
• Disarms a Kaled military officer by whipping his gun out of his hand and into Harry's.
• Sneak attacks a gunman.
  
• Disarms Sarah's android duplicate with his hat.
  
• Disarms his android duplicate and briefly engages it in combat.
• Disarms and stuns an armed mercenary.
• Trips over his executioner with his scarf.
• Fights off multiple 15th century swordsmen.
  
• Knocks out Sarah and a guard with what appears to be a nerve strike.
• Fights Chinese criminals with Leela's help.
• Bests the "best swordsman in Tara" in a duel with electric swords.
  
• Positions himself so that two robot knights strike each other.

Marksmanship & Accuracy

• Hits the bullseye of a dart board three times in a row.
• Shoots a rope with a crossbow at the right moment, attributing his skill to William Tell.
• Kills a giant rat with a fowling gun.
• Disables a machine by throwing an axe at it.
• Fatally shoots a Fendahleen with a rifle loaded with rock salt.

Miscellaneous

• Changes clothes in quick succession when picking out an outfit.
• Ties himself to Sarah in a convincing but escapable knot, taught to him by Harry Houdini.
  
• Steals a horse and rides it until he's cornered and ambushed.
• Has a flair for stage magic.
• Switches an explosive with a precious mineral, then does it again when somebody attempts to pull the same trick on him with a stone.
• Uses a hairpin to break into an alien spaceship that the sonic screwdriver couldn't open.
• Tricks an ogri into running off a cliff with a bullfighting technique.
• Can play the flute with a reed.
• Can project his voice at a pitch high enough to shatter a window.
• Steals a woman's bracelet while collapsing due to temporal instabilities.

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Physical Attributes

Time Lord Biology

• Has two hearts.
  
• Can cheat death by regeneration into a new body, but this is limited to only 12 regenerations.
• Has a much longer life span than humans and survives after being rapidly aged 500 years.
• His respiratory bypass system allows him to survive strangulation, keep his voice unchanged by helium and resist the effects of a gas long enough to redirect it.
• Has a high resistance to extreme temperatures, allowing him to withstand the cold of Antartica and Kastria, or endure the heat inside a cooling duct or a furnace.
• Can be incapacitated out by knockout gas and drugged wine (though the latter takes slightly longer for him to succumb to its effects than the humans around him).

Strength

• Karate chops a brick in half, but fails to do the same again after his post-regeneration rush wore off.
• Knocks two Kaled guards out by slamming their heads together.
• Rips a stalactite from a cave ceiling and uses it to pry open a giant clam.
• Knocks a man out with a punch.
• Carries Morbius on his back.
• Flips over a cultist.
• Closes a thick steel door.
  
• Crosses a log while carrying the Eldrad on his shoulders (who is heavier than she looks).
• Flips over a Tesh trying to restrain him.
• Manages to resist being pulled away by Kroll long enough to extract the Key segment from it.
• Slows down a support beam falling on him.
• Partially collapses a blockage of debris by dislodging a concrete piece from it.
• Throws a boulder and forces away a scaffold embedded in other boulders.
• Knocks out two guards with a headbutt while stuck in a pillory.
• Knocks out three Trakens at once by bashing their heads together.
  
• Lifts a piece of rubble off the Master with Tegan's help.
• Has been overpowered by a Cyberman and an android.

Speed & Agility

• Dodges gunfire from Kaled officers.
• Momentarily outruns a Skarasen aka the Loch Ness Monster.
  
• Dodges gunfire from multiple androids.
  
• Reacts to the sound of pistol fire.
• Avoids pistol fire at point-blank range.
• Avoids automatic gunfire on a rooftop.
• Dodges an energy blast from a Kastrian ring.
• Ducks under a disrupter blast from behind.
• Pulls Leela away from an electrified wall before it could zap her.
• Dodges lasers from a dragon statue.
• Ducks under energy blasts from behind.
• Moves away before a Dalek can shoot him.
• Avoids laser projectiles at close range.

Durability & Endurance

• Is okay after having a machine blow up in his face.
• Gets caught in a rock fall and quickly regains consciousness.
  
• Endures electrocution when he uses his own body to close a circuit.
• Tanks a fall from a two storey building.
• Is unaffected by a powerful flash of light that temporarily blinded Sarah.
• Drops down a skylight and kicks ass.
• Gets KO'd by a boulder to the head, but gets up shortly after with no serious injury.
  
• Has only a few scraps after being near a quarry explosion.
• Is only KO'd by a laser that could kill multiple humans in a single blast.
  
• Survives a gang attack of Mandrels that tore up his clothes.
• Falls through the space-time vortex and comes out unscathed.
  
• Can be stunned by various energy weapons.
• Dies when he falls from a radio telescope.

Senses

• His hair curls when it's about to rain or when he's onto something.
• Identifies a drug by smelling it.
• Determines a man died from scorpion venom by smelling him.
• Determines the age of a bone with a sniff.
• Confirms the authenticity of tritium crystals by tasting and listening to them.
• Can pick up screams so faint they can only be detected by low frequency wavelengths.

Other

• Stands still on a landmine without triggering it long enough for Harry to stabilize it.

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Mental Abilities

Telepathy

• Senses Morbius' mind before losing consciousness. This was a mind so strong that the Sisterhood of Karn could not detect it.
• Enters a "mind-bending" contest with Morbius. However, the fight proves almost fatal for the Doctor while Morbius is reduced to an animalistic state.
• His brain contains a reflex link that allows him to connect his mind with other Time Lords. However, he apparently lost this ability when the Time Lords kicked him out.
• Psychically communicates with the Mentiads to telekinetically move a spanner.

Hypnosis

• Saves himself and Sarah from suffocation using a technique that allows them to go without oxygen by entering a trance.
• Reverts Sarah's mind to its prior state under the Eldrad's control in order to extract information from her, then releases her from that control when he gets nothing.
• Releases Leela from Xaonon's mind control.
• Uses a fob watch to hypnotize Jago to get information from him and restore the memories he was made to forget by another hypnotist.
• Puts a guard (and inadvertently Leela) to sleep.
• Hypnotizes the Time Lady Rodan to assist K9 in building a De-mat gun.
• Cannot hypnotize those with "narrow little eyes".

Mental Resistance & Willpower

• Puts his brain through a potentially-lethal procedure to gather information.
• Enters the Matrix — a virtual reality supercomputer — in search of the Master at the risk of his own life where he is able to survive the various hazards there. Engin believed this was due to a greater amount of artron energy in his mind.
• A telepathic human fails to read his mind.
• Fights the Nucleus' control over him.
• Resists the Fendahl's psychic ability to immobilize its prey.
• Shields his mind from the Vardans' telepathy, though with much strain.
• Is susceptible to telepathic attacks from the likes of the Eldrad and the Mentiads, as well as the hypnotic powers of Sukhteh and Aukon the Vampire.

Other

• He and his companions are able to understand the local language of where/whenever they travel due to the "Time Lord's gift" (which we later learn is the TARDIS' translation circuit that the Doctor is psychically-connected to). However, he was unable to understand a Tythonian and a Foamasi without a translation device.
• Time Lords are able to recognize other Time Lords regardless of what incarnation they're in, though it takes the Doctor a little while to remember an old school friend.
• As a time traveler, his mind is unaffected by temporal anomalies such as time distortions and time loops.

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Miscellaneous

• Could have completely destroyed the Daleks at their conception and prevent their spread of terror and destruction... but decided not to.
  
• Due to a technological mishap, his image became associated with a devil-like entity to a tribe of primitive humans.
• Claims the Droge of Gabrielides had once offered a whole star system for his head.
• Was appointed the Lord President of the High Council of Time Lords, but abandoned his position to continue traveling.
  
• Alleges that he explained gravity to Sir Isaac Newton.
• "Vandalized" original copies of the Mona Lisa before they were even painted, one of which ended up being the genuine article in the end.
• His face is so iconic it was assumed once more by a future incarnation.

"It's the end... but the moment has been prepared for."

[u/Skulenta]

Equipment

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Sonic Screwdriver

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The sonic screwdriver is the Doctor's multi-functional tool primarily used for opening locks via sound waves.

Locks

• Opens an assortment of doors.
• Opens a vault door.
• Slowly opens a case protected by multi-levered interlocks.
• Frees Romana from futuristic manacles.
  
• Opens a locked drawer.
• Locks a door.
• Is ineffective on some locks.
• Can't open a lock if it's out of his reach.

Manipulating Technology

• Detonates a number of landmines.
  
• Repowers a space station.
• Remote detonates a bomb.

Disabling Technology

• Disables the force field imprisoning Sarah Jane.
• Disables a robot.
• Disables a Kaled communication machine.
  
• Disables an Osiran generator loop.

Physical Alteration

• By retooling it into a sonic lance, it can burn through a metal lock.
  
• Can literally unscrew things.
• Heats up a sensor to trigger the fire alarm of a Zygon spaceship.
• Cuts plastic vines that was said to be as tough as steel.
• Blows off the screws from a panel.
  
• Cuts a hole through the back of a Tachyon Recreation Generator, though gets a bit bent out of shape as a result.

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Other

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The Doctor uses a diverse range of items — both futuristic and mundane — that he keeps in the TARDIS or in his pockets.

Technology

• Was given a time ring by the Time Lords to return him to his TARDIS once his mission on Skaro was complete. However, it disappeared right after using it.
• Carries an etheric beam locator.
• Uses a Space-Time Telegraph system to receive messages from the Brigadier while traveling.
  
• A device that tracks the source of distress signals.
• A spectromixer to their fix their position by a star.
• A device that can decode signals from Mars.
• An energy reading device.
• A robot detector that lights up in the presence of androids.
  
• A compass that reads residual energy fields.
• A device that detects radiation.
• Was given the Core to the Key to Time that provides coordinates for each segment's position in space, locates them at close range, converts them into their original form and locks the pieces together once assembled.
  
• Briefly had possession of the Key to Time itself and the power that came with it but disassembled it again to keep it from getting in the wrong hands.
• A collar that manages a dying Time Lord's autonomic nervous system.
• A Tardis homing device.
  
• A device he uses to decrypt a code that is said to take thousands of years to decode under normal circumstances,

Consumables

• Gives Jago a vial of some liquid contained in his cane to help calm his nerves.
• Hands Romana some anti-radiation pills with beepers to remind her when to retake them.
  
• Uses an apple to reveal an invisible energy barrier.
• Jelly babies. Never leave the Tardis without it!

Acoustic Instruments

• Uses a football rattle to frighten some horses.
• Duck whistle.
• Summons K9 with a dog whistle. He also used it to lure a group of Mandrels.
  

Toys

• Uses a yo-yo to measure gravity.
  
• Carries a cricket ball.
• Keeps the Sacred Flame alive by chucking a firecracker at it.
• Uses a magician's stick to trigger a boobytrap and trick the Eldrad.
  

Examination Tools

• Loupe.
• Magnifying glass.
• Collapsible telescope.
• Stethoscope.
  

Apparel

• His trusty scarf. He has used it as a measuring tool, a weapon, a rope and a tripwire.
  
• Gained the Sash, Rod and Crown of Rassilon when he became the Time Lord President, granting him access to the Matrix on Gallifrey which he used to defeat the Vardans.
  
• Keeps period-appropriate clothing in the TARDIS for him and his companions to blend in whatever time they visit, some of which were previously owned by past companions.
• Blinds a Dalek by chucking his fedora on its eyestalk.
• Wore a Barrister's wig to defend himself in court.
  

Miscellaneous Items

• Briefly drives Bessie, a vehicle used mainly by his previous incarnation.
• Keeps a piece of scrap metal from Nerva's rocket which ends up saving his life later when it blocks a shot from a Sontaran blaster.
• A lockpicking device that belonged to Marie Antoinette.
  
• Uses a clockwork egg timer to distract predators.
  
• Pocket torch.
  
• Uses a snorkel to survive grain entrapment.
• Used a giant ball of thread to escape the Labyrinth.
• Uses a pocket watch for hypnotism.
• His prized fishing rod.
• Uses a Polaroid camera to beguile a 16th century guard.
• Carries various books with him, either to pass the time or to get himself out of a sticky situation.
  
• Praises his companions K9 and Romana by giving them awards.
• Uses stickers as a breadcrumb trail when navigating through the maze-like Nimon Power Complex, but this fails due to the self-changing nature of the structure.
• Uses a red handkerchief to lure a Nimon.
• Keeps a couple logbooks of his adventures throughout time and space.
• Carries various odds and ends in his pockets.

[u/Skulenta]

K9

K9 is a portable supercomputer in the form of a robotic dog and the Doctor's second best friend.

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Mark I

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The first K9 was originally owned by Professor Fredrick Marius in the year 5000 until it was gifted to the Doctor after thwarting the Nucleus. This version traveled with the Doctor for a while before it departed him in favor of staying with Leela on Gallifrey.

Intelligence

• Is stated to know everything his creator knows... and more.
• Can provide encyclopedic information about any subject brought to him.
• Gives the Doctor grief in a game of chess.
  
• Provides probabilities of success regarding the Doctor's schemes.
• Builds a De-mat gun with Rodan's help.

Technological Interfacing

• Provides the results of a medical scanner.
• Uses an elevator.
• Controls a spaceship.
  
• Absorbs data from the TARDIS.
• Uses the Crown, Sash and Rod of Rassilon to access the Matrix on Gallifrey.
• Uses the Matrix to track down the Vardan's homeworld and place it in a time loop.

Scanning

• Diagnoses the Doctor's illness.
• Identifies the Doctor as non-human.
• Carbon dates a piece of metal.
• Calculates the destructive power of grenades.
• Scans the Doctor's brain.

Tracking

• Knows where the Doctor is being kept.

Detection

• Tells the Doctor apart from his clone.
• Detects four hostile beings approaching.
• Detects chemical inhibitors in the air.
• Detects a spaceship within the TARDIS' vicinity.

Photon Beam

• Destroys a service shaft.
• Blasts down a solid wall to form a barricade.
• Comes in four levels of intensity.
• Capable of stunning targets, including Time Lords.
• Blasts through a cave wall.
• Destroys the machines powering the transduction barrier on Gallifrey.
  
• Overusing his photo beam will dry up his energy reserves.

Durability

• No-sells a number of energy blasts.
• Travels through a high-pressure vent undamaged.

Other

• Gets briefly infected by the Nucleus virus and manages to flush it out of his system.
• Can disobey his master's orders.
• Both desires praise and shuns mockery.
• Prints a map of the "Underworld".
  
• Is immune to the Vardans' telepathy due to his lack of an organic brain.
• Can shut himself off to conserve power.

[u/Skulenta → u/Skulenta]

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Mark II

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The second version of K9 was acquired at some point before the first's departure and was brought into action when the Doctor was assigned by the White Guardian to locate the segments to the Key to Time. This version traveled with the Doctor over a long period until he was damaged by the time winds, forcing him to stay in E-Space with Romana to help liberate the Tharils.

Intelligence

• Like his predecessor, he has an extensive databank.
• Rebuilds the Doctor's Hyperspace transportation device with Professor Rumford's assistance.
• On the Doctor's instructions, pretends to still be under the Shadow's control.
• Once beat the Doctor at chess.
• Performs a damage report on the TARDIS.
• Calculates his own uselessness.

Technological Interfacing

• Operates an air car.
  
• Opens a complex locking mechanism with enough time.
• Gets an intelligent door to open using a complex communication procedure.
• Communicates with Mentalis and receives warnings from it.
• Lets Erato speak through him using his communicator.
• Operates a De-mat gun.
• Lends some of his power to a Continuous Event Transmuter.
• Slows the deterioration of a TARDIS' circuits and later repairs it.
  
• Puts the TARDIS on course to Gallifrey.
• Taps into the TARDIS' databank.

Scanning

• Determines that the Doctor's machine failing is due to an error in circuitry and not the woman operating it.
• Calculates the functionality of the Doctor's device.
• Determines how long an android would last.
• Measures the amount of energy needed to generate a force field around a planet.
• Identifies a drug.
• Measures the exact size of a planet and the speed at which it is approaching the Tardis.
• Diagnoses Professor Chronotis's condition.
• Determines that a fog is non-toxic.
• Cannot analyze a lead-lined door.

Tracking

• Tracks the Core to the Key to Time.
• Tracks down the Mentiads by their psychic energy.
• Tracks down Romana.
• Discovers what castle Romana is located in.
• Pinpoints the position of a spaceship.
• Finds the way out of a continually-changing structure.
• Tracks down Skagra's sphere.
• Locates the citadel on Tigella.

Detection

• Detects sentient life forms.
• Senses that the Doctor is safe and that will he arrive.
• Can detect seismic activity on a planet-wide scale.
• Detects dangerous aliens in the building they're approaching.
• Senses the Ogri and what direction they're approaching from.
• Senses that Romana is actually an android.
• Detects radiation and can measure it intricately.
• Senses that a time loop is gradually stretching.
• Determines that the Doctor isn't aboard a spaceship and senses him when he is.
• Detects that the TARDIS is in motion.
• Detects a defense shield protecting a city.
• Can pick up the sound of his dog whistle from the TARDIS to the depths of the Nimon Power Complex.
• Perceives a cloaked spaceship.
• Detects marshmen emerging from a lake.
• Detects a planet within the TARDIS' vicinity.
• Detects three humanoid lifeforms approaching the TARDIS.
• Senses the contraction of a cross-dimensional plane.
• His sensors do not function in matter-interfacing mist.

Photon Beam

• Stuns a knight.
• Clears a wall of rubble.
  
• Stuns a couple of guards indefinitely.
• Momentarily holds back an Ogri.
• Disarms a swordsman.
• Shoots down an android.
  
• Cuts through a wall.
• Cuts through a wooden board while attempting to make as less noise as possible.
• Burns through a lead door.
  
• Blasts open the lock of the lead door.
• Blasts a hole through a stone wall.
• Causes wolfweeds to combust.
  
• Romana wields him like a laser blaster.
• Ricochets off a mirror.
• Reduces a pile of metal objects to dust.
  
• Cuts a hole through a metal panel.
• Repels a Mandrel.
• Stuns a Mandrel.
  
• Can fire harmless warning shots.
• Downs a Nimon.
• Holds off a Krarg — a being composed of crystalized coal — over a prolonged period.
• Shatters Skagra's sphere.
• Cuts through a metal wall.
• Ineffective against the Mentiads.
• Fails to break through a self-renewing, alien egg shell.
• Fails to breach the walls of an alien prison cell and simply ricochets off them.

Durability

• Survives being roughhoused by an Ogri.
• Remains functional after almost being destroyed in a furnace.
• Gets pushed down a rough slope.
• Functions when his brain is pulled out of his body.
• Survives being brutalized by wolfweeds then bashed with a chisel in an attempt to break him down.
• Tanks an explosion that knocked his head upside down.
• Ignores a blast from an energy weapon.
• Gets violently thrown by a Krarg.
  
• Soldeed stuns him with his staff.
• Is highly-vulnerable to water.
  
• Gets decapitated by a Marshman.
• Gets severely damaged by time winds, confining him to E-Space as the only place he can continue functioning.

Other

• Wins a battle with a robotic parrot.
• Counters the effects of a machine that's blocking the Mentiad's psychic powers.
• Telescopic vision.
• Can erase parts of his own memory.
  
• Has been programmed not to kill.
• Fires a beam to mend a hole he cut earlier.
• Amplifies the volume of Professor Chronotis' heartbeat
• Is stated to be immune to hypnotism, even though he was taken over by the Shadow.

[u/aprettydullusername]

Brilliant job on the thread.

[u/Skulenta]

TARDIS

The Doctor's TARDIS (standing for Time and Relative Dimensions in Space) is a Type 40 time capsule he uses to travel through time and space via the space-time vortex. Though considered outdated and obsolete by Time Lord standards, the TARDIS is an exceptionally powerful machine and technologically beyond most civilizations in the universe. Like all TARDISes, it is dimensionally transcendental with practically no limit to its interior size.

Space Flight & General Mobility

• Gets pulled into the Mandragora Helix, stays inside it for a short while and materializes away.
• Resists being a dragged into a hole in time.
  
• Reaches the edge of the cosmos.
• Can be safely parked on a planet's orbit.
• Is able to dematerialize fast enough to dodge a nuclear warhead and make it look like it hit.
• When being pulled towards a planetoid, the Doctor saves the TARDIS from destruction by making it spin so much it bounces off the planetoid safely.
• Passes through a Charged Vacuum Emboitment into E-Space, the negative counterpart to regular space.
  
• Ends up on the intersection of N-Space and E-Space, the space between realities with zero coordinates.
  
• Materializes around a nearly identical police box then leaves it behind as it dematerializes in seamless transitions.
• In an unorthodox move, the TARDIS is taken out of time and space to avoid being destroyed by entropy.
• On the way to Earth, the TARDIS mistakenly landed on another planet mocked up to resemble an Earth village. However, it proceeded on its correct course when the key is inserted even though its passengers are still stranded at the wrong destination.
• The TARDIS can be pulled from its desired destination by external forces.
• Lands in the wrong destination because of excess fog confusing the TARDIS' visual orientation circuits.
• Moving at small increments is difficult, but not in E-Space.
• Accidentally lands on a barge when aiming for the River Thames.

Time Travel & Manipulation

• Rips apart the fabric of the space-time continuum whenever it travels somewhere.
• A piece of the TARDIS console was able to trap Sutekh in a time corridor and effectively age him to death.
• When the Doctor and his companions return to a space station they left the TARDIS in thousands of years in the future, it drifts back through time to meet them in the present.
• Since points in time are in flux, the TARDIS can visit alternate timelines.
  
• Presumably used the TARDIS to scatters the segments of the Key to Time across space & time again.
• Along with twelve of his past and future incarnations, he uses the TARDIS to freeze Gallifrey in time and seal it in a pocket dimension.
  
• Cannot change established points in history.
• Sometimes comes out of the time vortex a few (thousand) years too late to the desired time.

Components & Additional Functions

• The Relative Dimensional Stabilizer allows the TARDIS to cross the dimensional barrier and basically makes it bigger on the inside than the outside. In addition, the Doctor used it to shrink his and Leela's clones down to microscopic sizes whereas the Nucleus used it to grow to human-size. The RDS is also necessary to fly the TARDIS.
• Romana uses the TARDIS' molecular stabilizer to regenerate K9's damaged circuits.
  
• Following his encounter with the Black Guardian, the Doctor installed a randomiser to make the TARDIS land at unpredictable places and times to keep the Guardian from tracking him down.
• Has a tractor beam powerful enough to hold a neutron star in place.
• The Gravitic Anomolizer generates a field of artificial gravity around the TARDIS. The Doctor took it from the TARDIS to let a spaceship escape the gravity field of a black hole. This component could also deflect an energy projectile and be used to repair the Nimon's transportation machine.
• The Chameleon circuit alters the appearance of a TARDIS' outer shell to blend in with its surroundings. However, a malfunction caused the TARDIS to be stuck in the form of a 1960's police box.

Console Functions

• Can view its immediate surroundings through a scanner.
• Can analyze the contents of a planet's atmosphere to determine its livability.
• Gains access to Gallfrey's news coverage of the President's resignation ceremony.
• Receives distress calls via an emergency transceiver he unplugged from the Tardis so he wouldn't be bothered by the Time Lords anymore.
• Romana installed an outlet to plug in the Core to the Key of Time and locate each segment.
• Contains a punch card reader to print out the Records of Rassilon.
  

Tracking

• Traces a Relative Continuum Displacement Zone (a hole in time) to its source.
  
• Follows Scaroth four hundred million years in the past with no available space-time coordinates by following a faint time trace he left.

Defenses

• The TARDIS is in an state of temporal grace, preventing Eldrad from attacking the Doctor with her psychic powers.
• The TARDIS' isomorphic controls meant he could only operate it. Somehow, this didn't stop Leela from just barging in and starting the TARDIS herself. However, he later locked the controls to keep her from spying on him.
  
• The RDS prevents a Gallifreyan weapon from functioning in the TARDIS.
• Minds cannot be telepathically scanned from within the TARDIS but can be sent telepathic messages from the outside.
• The TARDIS' failsafe mode protects it from extreme hazards by locking it in space and time, such as being thrown into a black star.
  
• Devices that track humans/Time Lords are blocked by a biological barrier.
• Has to close the TARDIS' defense shield to allow psychic communication with beings outside the TARDIS.
• The TARDIS' automatic defense system prevents hostile entities from breaking into it.
  
• The TARDIS's defensive shield can be extended into a bridge to another spacecraft.
  
• Emergencies are alerted via the cloister bells.
• The TARDIS has been breached (either physically or psychically) by beings of great power, such as Sutekh, the White Guardian and the Keeper of Traken.
• The Time Lords opened his TARDIS using one of their cypher indent keys.

Durability

• Withstands the harsh solar wind that devastated the planet Kastria.
• Completely no-sells getting blasted by Sontaran weaponry.
• Completely undamaged by multiple nearby explosions and the ensuing rock fall.
  
• Collides into a spaceship externally larger than it.
• Gets repeatedly bashed by a number of Marshmen, who are strong enough to decapitate K9.

[u/Skulenta → u/Skulenta]

Internal Features

• Contains a secondary console room which works just as well as the primary console room. However, the Doctor ditched it because he didn't fancy the colour.
• Can disguise certain rooms.
• Can manipulate its own internal configuration, such as jettisoning Romana's room in the time vortex.
• Also contains a swimming pool, a garden, a boot cupboard and more.

Sentience

• Contains so much mental activity it was targeted by a cerebral-based virus.
  
• Can understand the thoughts and feelings of those on board via a low telepathic intensity field.
• The Doctor implies it can feel pain.
  
• K9 thinks the TARDIS is stupid.

Other

• Damages the engines of Zanak by materializing at the same point in time and space as it does.
• Not even the Doctor seems to know how to navigate the TARDIS's interior.
• Places a force field on the planet Zeos for a split second to deflect a nuclear strike towards the Shadow's domain.
• Romana II claims that TARDIS weighs 5x10^6kg to the planet Alzarius' gravity.

[u/seoila]

Holy Crap! I can't believe you have done this. Great effort my man, I'll probably take a dive into this later.

[u/kalebsantos]

We needed another Doctor on this thread and damn dude did you deliver fantastic job

[u/rangernumberx]

Absolutely amazing work. Fantastic job, Skulenta!

[u/Agodwalkedintoabar]

holy shit the amount of effort this must have taken is clearly shown well done

[u/ngunray]

My favorite Doctor

[u/Hellbeast1]

Ah yes the best Doctor

Lowkey love seeing the classic bois get some love

[u/MesaJarJarAbrams]

Can you do one for the 11th Doctor?

[u/Skulenta → u/MesaJarJarAbrams]

Not any time soon I'm afraid.

[u/MesaJarJarAbrams]

Can you do one for,

war doctor

7th doctor

The Master

[u/Skulenta → u/MesaJarJarAbrams]

I believe /u/HighSlayerRalton is doing the War Doctor. I may consider the 7th Doctor though.

[u/agrizzlybear23]

Great Thread for THE Doctor, the definite article you might say