->''"Look after him, won't you? He gets into the most terrible trouble."''
-->--Departing companion '''Turlough''' to new companion '''Peri'''

As with all ''Series/DoctorWho'' characters, they appear not only in the televised Franchise/{{Whoniverse}}, but also in the Franchise/DoctorWhoExpandedUniverse branches. For their ongoing character tropes in AudioPlay/BigFinishDoctorWho (in which the original actors continue to play them), as well as for assorted other audio companions including those who travelled with the Eighth Doctor, see [[Characters/BigFinishDoctorWhoCompanions here]].

[[foldercontrol]]

[[folder: Susan Foreman]]
!!Susan Foreman (First Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/susanforeman_9703.png]]
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/susan123123123_4367.jpg]]
->''Oh, grandfather!''

-->Played by: Carole Ann Ford (1963-64, 1983, 1993)

The Doctor's granddaughter. When the series began, she attended Coal Hill School in London as a student for a few months in 1963, posing as a human with a fake human name. She's ConstantlyCurious and extremely sweet. Returns much later, as an adult, to help out the first five incarnations of her grandfather all at the same time.

* AudienceSurrogate: WordOfGod has it that she existed so that younger viewers could relate to her.
* BoundAndGagged: In "The Keys of Marinus: Episode 6".
* TheBusCameBack: While Susan has certainly been on a LongBusTrip, she did return for one adventure in 1983. To this date, Carole Ann Ford is ''still'' playing Susan in the Audioplay/BigFinishDoctorWho audios, both in First Doctor stories and as a companion to the Eighth Doctor.
* BusCrash: The Doctor stated he was the LastOfHisKind as early as "The End of the World". In the later episodes "The Empty Child", "Fear Her" and "The Doctor's Daughter", the Doctor reminisces about having had children once, and confirms that he considers every last Time Lord dead.
** Possibly subverted if the reason the Doctor thought he was the LastOfHisKind is because Susan was on Gallifrey at the end of the Time War. If that's the case, now that it's been [[TheReveal revealed]] that [[spoiler:the Doctor managed to save Gallifrey in a frozen moment in time rather than destroying it]] it's possible that Susan's still alive.
* TheCameo: She's ''very'' briefly seen, from the back, in a flashback in "The Name of the Doctor".
* CuddleBug: Loves to cling to people, especially Barbara and her grandfather.
* CuteClumsyGirl: One infamous moment has her accidentally dropping a bridge on top of the TARDIS ''and'' twisting her ankle in the process.
* HumanAliens: From the same race as the Doctor, which initially the audience knew nothing about, even their name.
* TheIngenue
* ItRunsInTheFamily
* TheLoad: In most of her stories, with the exception of "[[{{Recap/DoctorWhoS1E7TheSensorites}} The Sensorites]]".
** DependingOnTheWriter: Another exception is [[{{Recap/DoctorWhoS1E2TheDaleks}} The Daleks]], where Susan, sick with radiation poisoning, makes her way through a jungle to retrieve medicine to save The Doctor, Ian and Barbara.
* LongBusTrip: Returns in the 20th anniversary special "The Five Doctors", and in the [[AudioPlay/BigFinishDoctorWho Big Finish Eighth Doctor audio]] "An Earthly Child" and subsequent stories.
* NiceGirl: Creates a stark contrast to her much more ill-tempered grandfather, especially in his earliest stories.
* PstandardPsychicPstance: In "The Sensorites".
* PsychicPowers: She's very gifted in telepathy, ''much'' more so than her grandfather.
* PutOnABus: Done at the end of the serial "[[Recap/DoctorWhoS2E2TheDalekInvasionOfEarth The Dalek Invasion of Earth]]" where the Doctor leaves her behind so she can marry a nice young resistance fighter and have [[HomeSweetHome some stability in her life]]. She would have stayed with her grandfather out of a sense of obligation if he hadn't. She returns in "The Five Doctors".
* RiddleForTheAges: Susan's real (Gallifreyan) name. [[spoiler: According to the short story, ''Roses'', it is Arkytior, High Gallifreyan for "Rose". One wonders if the reason the revival series Doctor picked his first companion based on this.]]
* ScreamingWoman: The original screamer. That was why the actress left the show after only one season -- she got tired of this role.
* SecurityCling: She's very frequently clinging to either Barbara or the Doctor.
* ShipperOnDeck: The Creator/BigFinish Companion Chronicle "Here There Be Monsters" opens with her talking about how she thinks that Ian and Barbara truly belong together. (The Franchise/DoctorWhoExpandedUniverse, though, agrees unanimously with her, and a reference in the "Death of the Doctor" of ''Series/TheSarahJaneAdventures'' made it official for TV continuity.)
* ThickerThanWater: She feels strongly about her duty to her grandfather.
[[/folder]]

[[folder: Barbara Wright]]
!!Barbara Wright (First Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/barbaraw_2419.png]]
-> ''Accuse us? You ought to go down on your hands and knees and thank us! But gratitude's the last thing you'll ever have, or any sort of common sense either. ''

-->Played by: Jacqueline Hill (1963-65)

A history teacher at Susan's school who, together with Ian, gets abducted by the Doctor. A very down-to-earth companion who freely spoke her mind and never put up with the Doctor's lies and secrets. Quickly became a MemeticBadass for how determined she was in defeating monsters with whatever tools she had available.

* AbhorrentAdmirer: Barbara got chased by very unsavory types a few times, and on one occasion, was offered freedom in exchange for you-know-what. She was decidedly ''not'' impressed with the offer.
* ActionGirl: Running over a dalek with a truck could qualify her as this.
* TheAgeless: In "Death of the Doctor" on ''Series/TheSarahJaneAdventures'', Sarah Jane, after doing research to find other old companions of the Doctor, says that Ian and Barbara, now married and professors at Cambridge, are said not to have aged since the 1960s.
* AudienceSurrogate: She and Ian were designed in part so that viewers of roughly the same age could relate to them.
* BadassNormal: Barbara ran over Daleks ''with a'' '''''lorry'''''. The series' [[Awesome/DoctorWho Moment of Awesome]] page put it best: "The first two seasons could have been renamed The Why Barbara Is Awesome Show, and no one would have noticed."
* BadassTeacher: Both she and Ian, [[MoreDeadlyThanTheMale with Barbara being the bigger Bad Ass of the two.]]
* BigDamnKiss: Barbara doesn't waste any time in becoming the first person in ''Series/DoctorWho'' to snog someone: a handsome young Thal on Skaro.
* BoundAndGagged: In "The Crusade: Episode 1".
* BrainyBrunette: She can understand the TARDIS better than the Doctor can, at times. (In one Magazine/DoctorWhoMagazine comic, Eleven even calls her a "beautiful, bouffanted ''brainbox''".)
* [[spoiler:TheBusCameBack: Both she and Ian make a surprise appearance the 50th anniversary comic book, "Hunters of the Burning Stone".]]
* DefiantCaptive: Barbara is ''hardly'' passive in captivity. Her immediate reaction to hostile monsters is to bash their heads in.
* AGodAmI: Comes off as this in "The Aztecs", although she clearly knows that she isn't one. Attempting to change history and calling yourself an Aztec god (ItMakesSenseInContext) will do that.
* GoodIsNotSoft: Barbara becomes less pacifist as the series continues.
* KleptomaniacHero: Notably in "The Aztecs". Her love of history doesn't prevent her from trying on shiny things she finds in graves.
* MistakenForGods: In "[[Recap/DoctorWhoS1E6TheAztecs The Aztecs]]".
* MoralityChain: Barbara has no problems with telling the Doctor where to stuff his "angry old git" act. He mellows out ''considerably'' around her.
* MurderIsTheBestSolution: Usually played straight, but the trope came back to bite her in "The Rescue", when she [[spoiler: mistook Vicki's pet for a monster and shot it right in front of the girl]].
* OddFriendship: With Susan, and additionally becomes the first human companion to befriend the TARDIS.
* OfficialCouple: With Ian, eventually.
* OptOut: With Ian, using the Daleks' time machine.
* SecurityCling: Constantly hugging Susan, bordering on ParentalSubstitute.
* SweaterGirl: Wore an iconic sweater from the TARDIS wardrobe in season 1.
* TeamMom: Especially to Susan.
* WomenAreWiser: She has a habit of walking into a plot, seeing all possible options, and immediately steering everyone towards a solution.
[[/folder]]

[[folder: Ian Chesterton]]
!!Ian Chesterton (First Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/ianch_3934.png]]
->''We'd better keep an eye on [the Doctor]. He seems to have a knack of getting himself into trouble.''

-->Played by: William Russell (1963-65)

A science teacher at Susan's school who, together with Barbara, gets abducted by the Doctor. Had a fondness for rescuing people, often through good old-fashioned fisticuffs. While decidedly less direct in his approach than Barbara, he adapted quickly to being a TARDIS traveller and put his ChronicHeroSyndrome to good use.

* AbortedArc: He was supposed to be in "Mawdryn Undead", but was replaced by the Brigadier (of all people).
* AccidentalMisnaming: The Doctor called him Chatterton, Chesterfield, Charleston...
* TheAgeless: In "Death of the Doctor" on ''Series/TheSarahJaneAdventures'', Sarah Jane, after doing research to find other old companions of the Doctor, says that Ian and Barbara, now married and professors at Cambridge, are said not to have aged since the 1960s.
** In a retelling of the [[LostEpisode Missing Episodes]] of "The Crusade", William Russell appears as an older Ian.
** Further, [[Recap/DoctorWho50thASTheDayOfTheDoctor The Day of the Doctor]] has a FreezeFrameBonus, naming an "I. Chesterton" as the Chairman of the Governors of Coal Hill School, [[BookEnds where he worked]] before traveling with the Doctor.
* AudienceSurrogate: He and Barbara were designed in part so that viewers of roughly the same age could relate to them.
* AwesomeAnachronisticApparel: After spending months in ancient China as Marco Polo's guest, he keeps wearing his Chinese clothing for the next adventure just for the heck of it.
* BadassNormal: He had his moments of awesome, which include beating the crap out of some soldiers and outsmarting Daleks left and right.
* BadassTeacher: Uses his knowledge of chemistry and physics in a few adventures.
* [[spoiler:TheBusCameBack: Both he and Barbara make a surprise appearance the 50th anniversary comic book, "Hunters of the Burning Stone".]]
* ChronicHeroSyndrome: Oh, ''Ian''.
* GoodIsNotSoft: Ian probably kills more people than any other Who companion. [[note]]Excluding Rose as [[spoiler: the Bad Wolf]][[/note]]
* HotScientist: Yep.
* TheLancer: Oddly, the original intention of the show was to make him the hero with the Doctor being in this role.
* NervesOfSteel: He's very quick to leap into action.
* OfficialCouple: With Barbara, eventually.
* OptOut: With Barbara, using the Daleks' time machine.
[[/folder]]

[[folder: Vicki]]
!!Vicki (First Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/vicki_2551.png]]
->''Oh, something else I forgot to tell you. I think I've poisoned Nero.''

-->Played by: Maureen O'Brien (1965)

Survivor of a spaceship crash on the planet Dido, Vicki was a teenage girl who then traveled with the Doctor. Had a fondness for monsters and villains and quickly revealed herself to be a NightmareFetishist. As an orphan, she grew extremely close to the Doctor (who had recently lost Susan) and the two developed a makeshift family dynamic.

* TheCutie: Absolutely adorable.
* HandsOffMyFluffy: In her first episode, [[spoiler: Barbara mistakes Vicki's pet for a monster and shoots it]]. Vicki properly breaks down.
* IChooseToStay: [[spoiler: She decided to stay in ancient Troy and married [[Theatre/TroilusAndCressida Troilus]], becoming Cressida (yep, the one from GreekMythology)]].
* TheKnightsWhoSaySquee: One of the rare companions with literal {{Squee}} moments, notably when she realizes that she's about to meet Nero.
* NightmareFetishist: She's first introduced with a feral monster as her pet. The episode after that has her gleefully watching WhileRomeBurns, delighted at how she gets to watch history unfold.
* NoNameGiven: Her last name is never revealed on screen. The ExpandedUniverse has established her full name is Vicki Pallister.
* PluckyGirl: In "[[Recap/DoctorWhoS2E8TheChase The Chase]]" she ''stows away aboard a Dalek time machine'' and when confronted by armed Saxon villagers, tells them to hurry up and make up their minds whether she and Steven are spies or not.
** Sometimes approaches HeroicComedicSociopath dimensions, especially in "[[{{Recap/DoctorWhoS2E4TheRomans}} The Romans]]". (See defining character quote above.)
* SuspiciouslySimilarSubstitute: For Susan.
** She and the Doctor both discuss how they're looking for lost family in each other. Personality-wise, she's not too dissimilar to Susan, but she doesn't have her more alien outlook on the world.
* TeenGenius: She can talk to the Doctor at close to his own level about time travel theory.
[[/folder]]

[[folder: Steven Taylor]]
!!Steven Taylor (First Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/stevent_8844.png]]
->''This is quite a ship you've got here, Doc.''

-->Played by: Peter Purves (1965-66)

A very snarky marooned pilot from Earth's future, who stows away on the TARDIS. Deeply traumatised by having spent the few years before that as a prisoner, but adapts quickly to life as a TARDIS traveller.

* ArbitrarySkepticism: He doesn't believe in time travel during his first adventure, even though he has no problem with the whole "bigger on the inside" thing. The Doctor takes ''great'' delight in mocking him.
* CompanionCube: His stuffed panda, Hi-Fi. The only thing that kept him sane-ish while stuck on the planet Mechanus for two years.
* IChooseToStay: [[spoiler: He eventually leaves the TARDIS to mediate between two opposing factions of humans (or HumanAliens)]].
* TheLancer: To the Doctor.
* WhatTheHellHero: He berates the Doctor and storms out of the TARDIS after they flee the Massacre of St. Bartholomew and leave a young Protestant girl behind.
* YouAreInCommandNow: How he leaves the show. Two factions choose him as their new ruler during their peace negotiations.
* YouLookFamiliar: Purves plays a different character in an earlier episode of ''the same story'' in which Steven is introduced.
[[/folder]]

[[folder: Katarina]]
!!Katarina (First Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/katarina_5143.png]]
->'''First Doctor:''' She wanted to save our lives, and perhaps the lives of all other beings of the solar system. I hope she found perfection.

-->Played by: Adrienne Hill (1965)

A priestess from ancient Troy who thought the Doctor was a god. Her character was considered too limiting and she only appeared in two stories.

* CargoCult: To team TARDIS, who are MistakenForGods by her.
* FishOutOfTemporalWater: The reason why the production team had doubts in her staying power as a companion. It certainly worked a year later with Jamie though.
* HeroicSacrifice: First companion to leave the show by dying.
* OnlyOneName: May not even have a second name.
* ShooOutTheNewGuy: And she died in only her second adventure and fifth episode (in part 4 of a 12 part epic no less).
* ThrownOutTheAirlock
[[/folder]]

[[folder: Sara Kingdom]]
!!Sara Kingdom (First Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/sarakingdom_6945.png]]

-->Played by: Jean Marsh (1965)

Outside of the ExpandedUniverse, she appeared in [[Recap/DoctorWhoS3E4TheDaleksMasterPlan only one, twelve episode long, story, for seven of its episodes]]. She was intentionally written to serve in a companion role (taking over from Katarina) but was never intended to be a permanent character. Sara broke the normal companion mold (then and now) and worked as an agent for a sinister solar system-wide governmental security agency run by the human BigBad. Once she realized her error, she joined the crew of the TARDIS.

* TheAtoner: After she kills her own brother and realizes she has worked for the BigBad all along, leads to her transitioning into a more normal ActionGirl.
** The novelisation of the story makes this a big part of her character. She is haunted by nightmares of her brother's final moments and continually beats herself up over the fact that she blindly believed Mavic Chen when he said that Bret was a traitor. While she does genuinely want to stop the Daleks and Mavic Chen from destroying the universe, a major secondary reason is that she doesn't want the death of Bret to be in vain.
* DarkActionGirl: At least, the story wants to give his impression when she first appears.
* ExpandedUniverse: When her one and only (very long) story was novelised, it was split into parts. The second began by saying six months had passed since the first. Various Franchise/DoctorWhoExpandedUniverse works have been set in this gap. (The novelizations, incidentally, do not occur in the same continuity as other branches of the EU, or with each other.)
** Several Creator/BigFinish audio dramas featuring her are set after her death. Somehow.
* HeroicSacrifice: Makes one.
* MyCountryRightOrWrong: Why she's sent to terminate her own brother.
* ThePiratesWhoDontDoAnything: Dressed as a badass with a zap gun, but doesn't really do much of anything after her introductory episode.
* PuttingOnTheReich: She belongs to the ''SSS'', too.
* RedemptionEqualsDeath
* YouLookFamiliar: Jean Marsh had already played a different character, and returned in 1989 to play a third. Oh, and she married Creator/JonPertwee.
[[/folder]]

[[folder: Dorothea "Dodo" Chaplet]]
!!Dorothea "Dodo" Chaplet (First Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/dodoc_6698.png]]
->'''Steven:''' If it isn't allowed, Dodo would be first in the queue!

-->Played by: Jackie Lane (1966)

An teenaged schoolgirl from the year 1966. Although a FishOutOfWater in most of time and space, she tried her best to stay brave and ended up saving the day a few times over.

* BreakTheCutie: The ExpandedUniverse thrives on this trope ''anyway'', but Dodo comes in for more than her share. She comes away from her travels with a venereal disease and a nervous breakdown. [[FromBadToWorse And that's just the start of it...]]
* CloudCuckoolander: In her brief time on the show, she manages to stand out as one of the strangest Companions the show has ever had - certainly not stupid, because [[TheCloudCuckooLanderWasRight she frequently makes quick connections about things the Doctor and Steven have missed]], but the ways she expresses her ideas are invariably bizarre. She's also an extremely eccentric dresser (upon discovering the TARDIS wardrobe she immediately [[AwesomeAnachronisticApparel dresses up as a knight]]), and doesn't seem to find the fact that the TARDIS is a BiggerOnTheInside time machine which can never take her back to where she came from remotely weird or upsetting at all.
* TheGoodOldBritishComp: Dodo was in school uniform when she first entered the TARDIS.
* NaiveNewcomer: Way out of her depth in her earliest adventures.
* OopNorth: Famously invoked ([[UsefulNotes/FootballPopMusicAndFlatCaps Manchester accent]]) and then [[UsefulNotes/BritishAccents revoked]] after [[ExecutiveMeddling BBC fiat]].
* PluckyGirl: Very.
* ThePollyanna: Almost always peppy and upbeat.
* PutOnABus: Didn't even get a leaving scene. She waltzed off in "[[Recap/DoctorWhoS3E10TheWarMachines The War Machines]]" and left a note saying she was staying on her native Earth.
* SuspiciouslySimilarSubstitute: To Vicki, and to a certain extent, Susan. She's the last of three companions to fit the "Doctor's granddaughter" mold.
* TotallyRadical: A 1960s variant of this trope.
[[/folder]]

[[folder: Ben Jackson]]
!!Ben Jackson (First and Second Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/benj_7430.png]]
->'''Ben:''' The Doctor always wore this. If you are him it should fit... That settles it!
->'''Second Doctor:''' I'd like to see a butterfly fit into a chrysalis case after it spreads its wings.
->'''Polly:''' Then you ''did'' change.

-->Played by: Michael Craze (1966-1967)

A sailor from 1966. He and Polly helped the Doctor through his first regeneration. They joined and left the TARDIS crew at the same time as each other.

* TheDulcineaEffect: Ben comes to Polly's assistance when another man at the nightclub won't leave her alone.
* InHarmsWay: When he first appears, Ben's moping every night in the nightclub because he's been given a shore posting.
* OfficialCouple: It's (much) later revealed they got married, moved to India, and opened up an orphanage.
* TotallyRadical: Intended by the production team to show the new face of ''Doctor Who'' in the swinging mid-sixties.
[[/folder]]

[[folder: Polly]]
!!Polly (First and Second Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/polly_2595.png]]
->'''Ben:''' The Doctor always wore this. If you are him it should fit... That settles it!
->'''Second Doctor:''' I'd like to see a butterfly fit into a chrysalis case after it spreads its wings.
->'''Polly:''' Then you ''did'' change.

-->Played by: Anneke Wills (1966-1967)

A secretary from 1966. She and Ben helped the Doctor through his first regeneration. They joined and left the TARDIS crew at the same time as each other.

* BoundAndGagged: In "The Smugglers: Episode 2/3".
* NoNameGiven: Polly's surname is never mentioned on screen. It's [[WordOfGod probably]] "Wright". (In "The Faceless Ones", an alien duplicate of her gave her name as "Michelle Leuppi", but given that she was using a different forename there's no reason to suppose she kept Polly's original surname).
* OfficialCouple: It's (much) later revealed they got married, moved to India, and opened up an orphanage.
* {{Omniglot}}: In "The Underwater Menace", Ben has Polly try to speak to a local whose language they aren't sure of, with the expectation she can do it. Indeed, she goes through four different languages before the person speaks English.
* OnlyOneName: Polly's last name was never revealed on screen, but the scripts indicated it to be Wright, which has been adopted by the Franchise/DoctorWhoExpandedUniverse. A few reference books in the 1980s gave her last name as Lopez, a mishearing of "Leuppi" as mentioned above.
* StayInTheKitchen: Polly gets told to "Go make some coffee" a lot when she asks how she can help. Worse, when they leave the TARDIS crew Ben gets told to find his ship and become an admiral, while Polly should take care of Ben.
** Though in the ExpandedUniverse short stories from Creator/BigFinish, it's a few years before she and Ben get together, and she forges out her own career in Public Relations, becoming a little like [[Series/AbsolutelyFabulous Edina Monsoon]].
** And later in ''Series/TheSarahJaneAdventures'', Sarah Jane says that they now run an orphanage in India.
* TotallyRadical: Intended by the production team to show the new face of ''Doctor Who'' in the swinging mid-sixties.
[[/folder]]

[[folder: Jamie [=McCrimmon=] ]]
!!Jamie [=McCrimmon=] (Second Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/jamie_4152.png]]
->''Me? Foreign? ''You're'' the one that's foreign - I'm ''Scottish''.''

-->Played by: Frazer Hines (1966-69, 1983, 1985); Hamish Wilson (1968)

The longest running male companion to date. ''The'' longest running of all if you count by episode instead of by years active. A young piper of the Clan [=McLaren=], who came from 18th century Scotland. Became extremely close to the Doctor, both emotionally and due to a chronic case of SecurityCling.

* AscendedExtra: His character wasn't intended written to be a companion and the production team filmed a version of Jamie's introduction story in which he stayed behind in Scotland.
* {{Badass}}: One of the few action-oriented companions, and quite keen to get stuck into the action.
* BattleCry: "Creag an Tuire!" ("The Boar's Rock", the motto of the [=McLaren=] Clan).
* BraveScot: And very proud of it.
* CuddleBug: Any time he's in the same shot as the Doctor, there's a good 50% chance they're hugging, clinging to each other's arms, patting each other's shoulders, climbing all over each other or using each other as pillows.
* FishOutOfTemporalWater: To an extent; he was a quick learner.
* HeroicSacrifice: One of Jamie's ultimate fates in an ExpandedUniverse tale penned by GrantMorrison in the pages of ''Magazine/DoctorWhoMagazine''.
* HeterosexualLifePartners: He appears in all but the first of Troughton's serials, and this pairing is remembered as one of the best ever.
* LaserGuidedAmnesia: Had all but his first adventure mind-wiped by the Time Lords.
* LongBusTrip: Appeared as a companion to the Sixth Doctor's Creator/BigFinish adventures 25 years since his last appearance in the series; 41 years since his last appearance as a Companion proper. [[note]]Well, Frazer winds up playing a ''fictional'' version of Jamie back in the Land of Fiction ... but that's fine, he's got all the same memories of Jamie.[[/note]]
* ManInAKilt: He's Scottish, what'd you expect?
* MrFanservice: Named "Best Legs In The UK" much to the disappointment of many a young starlet hoping for the title.
* NoSenseOfPersonalSpace: Mostly with the Doctor, but sometimes with the female companions as well.
* TheNthDoctor: "The Mind Robber" replaced Frazer Hines, for an episode or two, for Hamish Wilson, who looked nothing like him. The story explained this by having him run afoul of a trap in the Land of Fiction that required the Doctor to try to reconstruct his face from a bunch of options (facial features hung on a blackboard), kind of like a Mr. Potato Head. He got it wrong the first time, and fixed it the second time, which brought back Frazer Hines. The actor switch was necessary because Frazer Hines had contracted chicken pox during the filming, and so was both contagious and also visibly affected by the disease and so unfit for filming the installments.
* RunningJoke: Jamie would disguise his ignorance of modern technology with a mock-casual. "Aye, that."
* SecurityCling: All the time, especially with the Doctor.
[[/folder]]

[[folder: Victoria Waterfield]]
!!Victoria Waterfield (Second Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/victoria_1116.png]]
->'''Second Doctor:''' You look very nice in that dress, Victoria.
->'''Victoria:''' Thank you. Don't you think it's a bit...
->'''Second Doctor:''' A bit short? Oh, I shouldn't worry about that. Look at Jamie's.

-->Played by: Deborah Watling (1967-68, 1993)

A well-brought-up young lady from 1866. She was taken in by the Second Doctor after the Daleks blew up her home and exterminated her father, but she didn't take well at all to a lifestyle of constant danger. Gradually got broken.

* BreakTheCutie: In her first couple of stories she's plucky, adventurous, and a dead shot with a pistol. By her last, she's been reduced to a nervous wreck who can't sleep for fear of the MonsterOfTheWeek. [[http://drwhointerviews.wordpress.com/2009/09/30/deborah-watling-1988/ According to Deborah Watling]], this gradual shift in character was deliberate.
* BadassAdorable: She's sweet and small and nervous and she will totally shoot you or attack you with a rogue speeding cart.
* DamselInDistress:
* TheDulcineaEffect: In her first story, she has this effect on Jamie and then in every story afterward.
-->'''Jamie''': Victoria. Victoria. Say something. No. No, you can't be dead. Victoria, if anything happened to you, I'd never forgive myself.
* ExpandedUniverse: Got her direct-to-video spinoff together with Sarah Jane and the Brigadier, called ''Downtime''.
* FishOutOfTemporalWater: Almost everywhere.
* IChooseToStay: She leaves team TARDIS because she just doesn't want adventures anymore.
* [[IdenticalGrandson Identical Daughter]]: She "looks just like" her late mother, and there's a portrait to prove it.
* LettingHerHairDown: She's a proper Victorian woman at the beginning with all the baggage that entails. She loosens up quickly around the other two. She doesn't even seem to have any religious hang-ups, unusually for her time and background - in "[[Recap/DoctorWhoS5E5TheWebOfFear The Web of Fear]]", she even wears a mini-skirt.
* OptOut: See IChooseToStay
* ProperLady: Comes with her upbringing.
* [[PunnyName Punny First Name]]: Even if it wasn't intentional.
* ScreamingWoman: So much so that Deborah Watling was nicknamed "Leatherlungs". Her screams are even used to resolve the plot of one serial.
[[/folder]]

[[folder: Brigadier Sir Alistair Gordon Lethbridge-Stewart]]
!!Brigadier Sir Alistair Gordon Lethbridge-Stewart (Second, Third, Fourth, Fifth and Seventh Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/brig_1090.png]]
->''Just once, I'd like to face an alien menace that wasn't {{immune to bullets}}.''

-->Played by: Nicholas Courtney (1968-75, 1983, 1989, 1993, 2008)

One of the most significant and recognisable companions, although he rarely travelled away from Earth. The head of UNIT in the 70s ([[ContinuitySnarl or in the 80s]], [[AuthorsSavingThrow "depending on dating protocol"]]), the Brig worked alongside the Doctor and many of his companions in that era and beyond -- often defending the Earth from various threats. He retired from UNIT in 1976, though still met up with the Doctor on occasion, as well as with Sarah Jane (in ''Series/TheSarahJaneAdventures'', 2008). TropeNamer for TheBrigadier.

* AgentScully: Has a tendency to keep this up even when up to his eyeballs in aliens. First time in the TARDIS, he dismissed the inside view as "some kind of optical illusion".
* AntiHero: Normally he's clearly on the good team but he dives headlong into this in "Doctor Who and the Silurians" where he orders the total genocide of a hibernating race. He also showed no hesitation about gunning down an unarmed prisoner in "Battlefield".
* AscendedExtra: Appeared as simply Colonel Lethbridge-Stewart in "[[Recap/DoctorWhoS5E5TheWebOfFear The Web of Fear]]". Brought back the next season and given a bonus promotion.
* BadassBeard: In old age.
* BadassMustache: Ironically, a fake one in almost all of his appearances outside "[[Recap/DoctorWho20thASTheFiveDoctors The Five Doctors]]". This allowed the actor to turn TheBrigadier into the "Brigade Leader" in the MirrorUniverse tale "[[Recap/DoctorWhoS7E4Inferno Inferno]]". There, the character sported an [[GoodScarsEvilScars Evil Scar]]-and-[[EyepatchOfPower Eyepatch]] combo. Quite jarring.)
* BadassNormal: He doesn't know the first thing about time travel or Time Lords, but he knows how to lead an army.
* BewareTheNiceOnes: Despite his constant politeness, stiff upper lip and occasional goofy moments, he's probably the most ruthless regular character on screen.
* BraveScot: It doesn't come up all that often, but he's very proud of his heritage.
* TheBrigadier: TropeNamer!
* TheCharacterDiedWithHim: He is stated to have passed away offscreen in "[[Recap/DoctorWhoS32E13TheWeddingOfRiverSong The Wedding of River Song]]", Nick Courtney having died a couple of months before Series 6 began.
* ColonelBadass: Before his promotion to TheBrigadier.
* TheComicallySerious: The embodiment of Keep Calm And Carry On. Lethbridge-Stewart is going to ''remain'' in charge, and no squid aliens, chaps with wings, giant robots, creatures from the Black Lagoon, or killer mannequins is going to have anything to say about it!
* CommutingOnABus: In Seasons 9-13 after UNIT no longer appeared in every story. After the final end of UNIT as a regular part of the show's set-up, he made three more appearances in the 1980s, and a final appearance in ''Series/TheSarahJaneAdventures''. (Poor health repeatedly prevented him from appearing in the main show during the 21st century.)
* CoolOldGuy: After he retired.
* DeadpanSnarker: Got into many a mutual snarking match with Three. Two and Four liked to just run circles around him intellectually instead. Five and Seven, on the other hand, were kinder and fairly more respective of the Brig.
* DrinkOrder: According to one of the nurses at his retirement home, before his death, he enjoyed a glass of brandy in the evenings and always made sure they poured an extra glass for the Doctor, in case he ever showed up.
* EyepatchOfPower: His scary alternate-universe self in "[[Recap/DoctorWhoS7E4Inferno Inferno]]".
* ExpandedUniverse: More than you can shake a stick at. Apart from his ''extensive'' work on AudioPlay/BigFinishDoctorWho, he got his own direct-to-video spinoff together with Sarah Jane and Victoria, called ''Downtime''.
* {{Expy}}: Resembles Colonel Breen from ''Series/QuatermassAndThePit''. So much so, that originally Julian Glover from the then-recent [[Film/QuatermassAndThePit movie adaptation]] would have played him had the original actor not dropped out.
* FascinatingEyebrow: His rival those of Creator/DavidTennant.
* FiveRoundsRapid: Also the TropeNamer.
* {{Flanderization}}: He was introduced in Season 5 and made a regular in Season 7, serving as an action-oriented non-scientific foil for the Doctor. Despite being a somewhat stubborn and closed-minded military man who depended upon the Doctor in dire circumstances, he was shown in his first 2 seasons as crafty and capable. Starting in Season 8, his most obvious traits were magnified. It got so bad that by Season 10 he was incapable of getting ''anything'' done when the Doctor was away, failed to understand even simple scientific principles, and was incredulous of any unusual phenomenon. This trend was reversed somewhat when his character was reintroduced in Season 20 after an absence of 7 years.
* [[LikeFatherLikeSon Like Father Like Daughter]]: His daughter, Kate, from the expanded universe, who later appears in the TV series.
* ImmuneToBullets: Again, the TropeNamer, though not immune himself by any means.
* KnightFever: Gained a "Sir" in Creator/BigFinish, which was later confirmed in the TV series.
* ManInAKilt: Proudly wears the hunting Stewart tartan during UNIT's adventure in Scotland.
* NervesOfSteel: He ''knows no fear''.
* {{Pornstache}}: Interestingly, his fascist MirrorUniverse counterpart is clean-shaven. [[note]]Although he was technically clean-shaven throughout the series, apparently... the famed moustache was actually a fake[[/note]]
* TheReasonYouSuckSpeech: In ''Series/TheSarahJaneAdventures'', he gives modern day UNIT one after a Bane disguised as a UNIT major has the cheek to insinuate that his era had it ''easier''.
--> '''Brigadier''': In my day, we took on Daleks, Cybermen, Autons, Zygons, and all manner of space thuggery! And it doesn't come more hostile than ''that!''
* RetiredBadass: In SJA, just because he retired doesn't mean he won't remind you of just ''why'' he is the Brig.
** He walks with a cane by this time. It fires ''harpoons.''
* RunningGag: In both ''Doctor Who'' and ''Series/TheSarahJaneAdventures'', the Brig has a disturbing tendency to be "stranded in Peru" when all the important, UNIT-related alien stuff is going on.
* SarcasticDevotee: He can snark and be irritated by the Doctor and whatever catastrophe he now has to deal with, but it's clear that beneath it all, he's secretly having the time of his life.
* ShootTheDog: Very much so in "Doctor Who and the Silurians".
* TheSnarkKnight: Especially towards Two.
* StaffOfAuthority: His swagger stick.
* StiffUpperLip: No matter whatever weird menace the Universe throws against him, the Brig takes it completely in stride.
* VitriolicBestBuds: His friendship with the Doctor starts out very uneasy, and he and Three spend most of their time insulting each other. His encounter with Five is naturally a lot calmer, and by the time he meets Seven, they've moved securely into this trope's territory.
** In Creator/BigFinish, he later (for him) meets Six and Eight (in that order), and gets along very well with both regenerations.
* WeComeInPeaceShootToKill: The Doctor often criticizes his unimaginative and often violent response to every alien threat. How justified this criticism is varies according to the circumstances. The Brigadier is simply using the tools he's most familiar with against aliens who are frequently hostile or at least acting in a sinister manner. Coming up with other options is the Doctor's job.
* YouLookFamiliar: Nicholas Courtney played Bret Vyon in "[[Recap/DoctorWhoS3E4TheDaleksMasterPlan The Daleks' Master Plan]]" before he got the role of the Brigadier, making him the ''only'' actor to act alongside all seven (eight if you count the audio dramas "Minuet In Hell" and "Zagreus") of the original Doctors at some point in his career.
[[/folder]]

[[folder: Zoe Heriot]]
!!Zoe Heriot (Second Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/zoeh_4132.png]]
-> ''My head has been pumped full of facts and figures which I reel out automatically when needed, but I want to feel things as well.''

-->Played by: Wendy Padbury (1968-69, 1983)

A teenaged astrophysicist from the 21st century ([[{{Zeerust}} as seen from 1968]]). Stowed away on board the TARDIS.

* ActionGirl: Has shades of this.
* BadassAdorable: As seen in ''The Mind Robber'', she's very capable of taking care of herself, when facing off and winning a fight against her favorite fictional character, The Karkus. And the smile on her face when she got Karkus to submit? Priceless.
* BeamMeUpScotty: There's a widespread belief that the catsuit she wore in "The Mind Robber" was purple, and it's frequently drawn like this in fanart. This seems to have originated from fan colourizations of black and white screenshots; there are colour photos on the DVD showing it was actually silver.
* BrainyBrunette: Possibly the smartest human companion the Doctor's ever had.
* EmotionlessGirl: In her first serial.
** Though she did seem a little hurt when Leo called her 'all brain and no heart'.
* FutureSpandex: Her uniform in "The Wheel in Space", and her [[IconicOutfit sparkly catsuit]] in "The Mind Robber" and "The Invasion".
* GeniusDitz: She doesn't know much history.
* GoodWithNumbers: Extremely.
* HairDecorations: She always wears an Alice band.
* HotScientist: With skin-tight catsuits. (Her role on the Wheel made her a HotLibrarian, too).
* LaserGuidedAmnesia: Same as with Jamie, thanks to those Time Lords. Temporarily removed for the odd Creator/BigFinish adventure; usually returns.
* LittleStowaway: How she joins team TARDIS.
* LongBusTrip: Much like Jamie above, Zoe is returning to the franchise for a Creator/BigFinish story ''27'' years after her last appearance in the franchise and about ''41'' years after the actual character left the TARDIS. Like Jamie, this has to be some sort of a record. [[note]]Unlike Jamie, though, this was the ''real'' Zoe. But [[LaserGuidedAmnesia she doesn't remain.]][[/note]]
* MsFanservice: Her [[EverythingsBetterWithSparkles sparkly catsuit]] is particularly fondly remembered, especially that bit in "[[Recap/DoctorWhoS6E2TheMindRobber The Mind Robber]]", and that's not even mentioning the miniskirts and short shorts. It was TheSixties, after all.
* PhotographicMemory: Has one.
* RealWomenDontWearDresses: In "[[Recap/DoctorWhoS6E1TheDominators The Dominators]]" (and the novelisation of "The Mind Robber"), she thinks dresses are impractical and doesn't wear them by choice. In "The Invasion", Isobel introduces her to miniskirts, which she seems to like better.
* SpellMyNameWithAnS: Heriot or Herriot? [[Main/WordOfGod The original script]] used the single-R version.
* StrawVulcan: A bit.
* TeenGenius: Although it's never specified just how old she's supposed to be.
* VagueAge: Depending what source you consult, she's anything from 12 to 21, though WordOfGod tends towards 15 or 16. The only onscreen mention of her age is in "[[Recap/DoctorWhoS6E3TheInvasion The Invasion]]", where the Brigadier estimates it as 19.
* WaifFu: Adept at it.
* YankTheDogsChain: In just about any ExpandedUniverse work where her LaserGuidedAmnesia is undone, she's amnesiac again (and stands a good chance of being worse off in other respects) by the end.
[[/folder]]

[[folder: John Benton]]
!!Sergeant John Benton (Second, Third and Fourth Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/benton_9879.png]]
-> '''Benton:''' Right then, Doctor. You'd better get busy.
-> '''The Doctor:''' What?
-> '''Benton:''' You'd better start overpowering me, hadn't you? You know, a bit of your Venusian oojah?

-->Played by: John Levene (1968-75) [[note]]a ''very'' young Darren Plant played the baby incarnation of Benton in [[Recap/DoctorWhoS9E5TheTimeMonster "The Time Monster"]] [[/note]]

A kind and determined UNIT sergeant. Benton was down-to-Earth and often had common sense that others around him seemed to lack. He always stood up for what he believed was right, even if it meant defying orders or getting into fights with his direct superiors. Together with Captain Yates, he was one of two recurring characters during the UNIT years who were subordinate to the Brigadier.

* {{Adorkable}}: Extremely badass, but has his moments of being this very much, like his being proud of making the best coffee in UNIT.
* CaptainSmoothAndSergeantRough: While Captain Yates certainly fits the bill of this duo, Benton is an absolute ''teddy bear'' of an NCO.
* CommutingOnABus: In Seasons 9-13 after UNIT no longer appeared in every story.
* ExpandedUniverse: Got his own direct-to-video spinoff, ''Wartime''.
* TheFettered: He even lets the Doctor knock him out in [[Recap/DoctorWhoS11E2InvasionOfTheDinosaurs "Invasion Of The Dinosaurs"]] so he doesn't have to break the law to help him.
* NumberTwo: The Brigadier often confers to Benton when he needs something done, even though Mike Yates outranks him.
* OnlyOneName: John Benton was only "Sergeant Benton" until the 1987 spin-off video ''Wartime'', though his first name was decided upon back in the 1970s. The name was simply not used until then, but has subsequently appeared in the ExpandedUniverse as his name.
* PutOnABus: Appeared to be [[Recap/DoctorWhoS13E4TheAndroidInvasion killed in action]] by an android duplicate, but it turns out that he retired from UNIT in 1979 and has since become a used car salesman.
* RankUp: [[Recap/DoctorWhoS7E3TheAmbassadorsOfDeath Happens]] [[Recap/DoctorWhoS12E1Robot twice]].
* ScrewTheRulesImDoingWhatsRight: Benton embodies this trope, especially all over "Invasion Of The Dinosaurs".
--> '''Finch:''' You’ll be court martialled for this, Sergeant!
--> '''Benton:''' Yes, sir. Very sorry, sir!
* SergeantRock: Eventually became UNIT's Regimental Sergeant Major, and often served as the Brig's senior enlisted man in the field. He's always calm, always on-the-ball, and very quick to react when a situation completely changed -- best seen when he very rapidly kicked, grabbed and overpowered [[spoiler: Mike Yates]] after the latter's FaceHeelTurn.
* ThoseTwoGuys: With Yates.
* UnfazedEveryman: Adapts with equanimity no matter what gets thrown at him. Exemplified in his first time inside the TARDIS.
--> Third Doctor: "Well, Sergeant? Aren't you going to say 'it's bigger on the inside than it is on the outside'? Everybody else does."
-->Sgt. Benton: "Well, it's ... pretty obvious, isn't it?"
[[/folder]]

[[folder: Dr. Elizabeth "Liz" Shaw]]
!!Dr. Elizabeth "Liz" Shaw (Third Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/liz_700.png]]
->''I deal with facts, not science fiction ideas.''

-->Played by: Caroline John (1970, 1983, 1993)

The Third Doctor's first assistant when he was exiled to Earth. Scientific advisor to UNIT, before the Doctor showed up and casually took her job. Rarely in the mood for the Doctor's shenanigans.

* AgentScully: Initially.
* BeleagueredAssistant: Starts off as being rather unhappy with being pulled away from Cambridge.
* DeadpanSnarker: Towards UNIT and Three.
* ExpandedUniverse: Eventually got her own direct-to-video spinoff, ''P.R.O.B.E.'', in 1994.
* FieryRedhead: She could even out-stubborn the Third Doctor.
* HotScientist: Spends a lot of time in Three's lab.
* MsFanservice: If her penchant for mini-skirts is any indication.
* OmnidisciplinaryScientist: She holds degrees in medicine, physics, and "a dozen other subjects".
* PrimAndProperBun: Sports one in her first story, when her relationship with the Brigadier and UNIT is at its frostiest. In subsequent stories, with the ice broken, [[LettingHerHairDown she lets her hair down]].
* PutOnABus: Left for Cambridge offscreen in "Terror of the Autons", apparently dissatisified with her job of "passing the Doctor test tubes". Returned to UNIT and was stuck in the moonbase as of the ''Series/TheSarahJaneAdventures'' story "Death of the Doctor". Barry Letts apparently didn't like the character, but she was already under contract, which he didn't renew.
[[/folder]]

[[folder: Josephine "Jo" Grant]]
!!Jo Grant (Third and Eleventh Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/jo_grant_8509.png]]
->'''Third Doctor:''' I thought you said you took science at [[UsefulNotes/BritishEducationSystem A-Level]].
->'''Jo:''' I didn't say I passed.

-->Played by: Creator/KatyManning (1971-1973, 2010)

Assistant to the Third Doctor during his exile on Earth. Ostensibly a scientist, but it's later revealed that a high-placed uncle got her the job. However, Jo is far from useless, and will not stand to have someone belittle her. She's taken up escapology courses, making her one of the few companions who is perfectly suited for the Doctor's line of work- getting captured all the time. She can easily get out of a jam when trouble rears its ugly head, or fight back when she needs to, so don't let her cute looks fool you. However, she truly is [[HeartOfGold a passionate and gentle soul]] who deeply cares about people, and will do what she can to help them, even if it means risking her life. But sometimes Jo will get a little too focused on them and [[TheDitz forget about her own safety]], and she can be [[MotorMouth really excitable]]. Returned briefly as a companion to the Eleventh Doctor in ''Series/TheSarahJaneAdventures''.

* BadassAdorable: Look at those faces she pulls. Look at the way she knocks out prison guards with food trays. She beats up several large soldiers and runs off with one of their motorcycles, everyone is surprised.
* BewareTheNiceOnes: Incredibly charming, equally disarming.
* BoundAndGagged: In "Day of the Daleks: Episode 2".
* BunnyEarsLawyer: Quirky, but good at her job.
* TheBusCameBack: She became a companion to Eleven for one episode, along with Sarah Jane.
* CombatStilettos: Combat Platforms, really; she spends most of her serials tackling mountains, quarries, and open fields in three-to-four-inch platform boots.
* CoolOldLady: In ''Series/TheSarahJaneAdventures''
* CrouchingMoronHiddenBadass: In "[[Recap/DoctorWhoS8E2TheMindOfEvil The Mind of Evil]]" most prominently.
* CuteClumsyGirl:
--> "I've really got off to a terrific start haven't I? I find the man everybody's looking for, I forget where he is, and I end up by trying to blow you all sky-high."
* DependingOnTheWriter: Whether in trope terms she's a genuine [[TheDitz Ditz]], a CrouchingMoronHiddenBadass, or engaging in full-blown ObfuscatingStupidity.
* TheDitz: Not to a ''huge'' extent, as oftentimes exaggerated by fandom. Jo does have her ditzy moments, but otherwise her intelligence is quite normal.
* EscapeArtist: She's a trained escapologist, and can often wriggle her way out of trouble. Thus, while she was hardly immune to being captured, this rarely did the bad guy any good.
* FauxActionGirl: Was originally meant to be an [[Series/TheAvengers Emma Peel]]-{{expy}} -- traces of this can be seen in her karate-chopping Sgt Benton in "Terror of the Autons", brandishing a gun in "The Mind of Evil" and her talents as an EscapeArtist. Eventually though it became easier for the writers to portray Jo as TheDitz and DamselInDistress. In fairness Jo was a rookie -- she'd been ''trained'' as a secret agent, but had no experience.
* GrandmaWhatMassiveHotnessYouHave: Even Rani points it out! (In ''Series/TheSarahJaneAdventures'')
* GranolaGirl: The Doctor notes that she's exceptionally bad at trying to be a scientist, and tries to get it into her head that it is not, in fact, the dawning of the age of Aquarius.
** It worked out well for her in the long run.
* HairOfGoldHeartOfGold: Easily one of the warmest companions in the series, with a heart as golden as her hair.
* HappilyMarried: She stayed with Dr. Jones and had [[spoiler:seven kids with him. They went on to have thirteen grandchildren.]]
* HoldingHands: The Doctor and his Jo always held hands while running... because actress Creator/KatyManning was so short-sighted that during the filming of their first adventure together, she ran straight into a tree.
* ManicPixieDreamGirl: A platonic version (although Creator/KatyManning insists otherwise). Her friendship with the Third Doctor makes him a [[TookALevelInKindness more open and softer]] person, and he's noticeably hurt when she leaves him.
* MsFanservice: Arguably one of the Doctor's hottest companions -- her wardrobe of mini-skirts, majorette boots and occasional panty-shots help out....''a lot''. That and the time Manning posed naked with a Dalek.....
* NiceGirl: Really sweet.
* ObfuscatingStupidity: She's quite ditzy, but knows how much she can get done by acting just a bit ditzier.
* PluckyGirl: Not many people can politely tell the Master that they aren't going to let themselves be hypnotised again.
* ThePowerOfLove: Gigantic invincible intergalactic demon about to wipe out mankind? No problem.
* SoapBoxSadie: And it actually works out for her.
* WalkingTheEarth: [[spoiler: It's what she's been doing since she got married. She travels everywhere and stages protests with her huge family]].
* TheWatson: Much of her job consists of asking the Doctor what's happening.
* WideEyedIdealist: Eventually finds a lifestyle that allows her to make a change for the planet.
* WillTheyOrWontThey: She enjoys a mild flirtation with Mike Yates and in "The Curse of Peladon", she's all ready to go out on a date with him, until the Doctor whisks her away.
* [[YouLookFamiliar You Sound Familiar]]: Katy Manning also plays companion Franchise/IrisWildthyme, who has her own spinoff in the Franchise/DoctorWhoExpandedUniverse.
[[/folder]]

[[folder: Mike Yates]]
!!Captain Mike Yates (Third Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/yates_3127.png]]
-> ''Rank has its privileges.''

-->Played by: Richard Franklin (1971-74, 1983)

Mike Yates was one of several subordinates to the Brigadier over the years. Despite being a soldier, he was also somewhat of a radical hippie. He left UNIT after the events of [[Recap/DoctorWhoS11E2InvasionOfTheDinosaurs "Invasion Of The Dinosaurs"]], but returned once more for [[Recap/DoctorWhoS11E5PlanetOfTheSpiders the final Third Doctor tale]]. It's unknown if he rejoined UNIT after or simply faded into obscurity.

* AbortedArc: Franklin currently believes that the original intention of the serial "[[Recap/DoctorWhoS11E2InvasionOfTheDinosaurs Invasion of the Dinosaurs]]" was to kill off Mike Yates. This is indeed quite possible, though his appearance in [[Recap/DoctorWhoS11E5PlanetOfTheSpiders a subsequent story]] might suggest otherwise. Less disputably, his planned romance with Jo never came to be.
* BiTheWay: A throwaway line (suggested by the actors) had him asking the Brigadier for a dance. (A fertility dance, to be precise.) The ExpandedUniverse ran with the idea and saw him ending up with a guy named Tom.
* BoundAndGagged: In "Planet of the Spiders: Episode 5".
* {{Brainwashed}}: "The Green Death" left him just a little bit traumatised, and he ended up taking an extensive vacation to clear his head. It didn't go well.
* CaptainSmoothAndSergeantRough: Fulfills his half of the dynamic with Benton, but the good Sergeant is far too much of a cuddly sort for it to be played straight.
* CheshireCatGrin: Both the Brig and the Doctor draw attention to it in "[[Recap/DoctorWhoS8E2TheMindOfEvil The Mind of Evil]]". It irks the Brig, but deeply amuses the Doctor.
* CommutingOnABus: In Seasons 9-11 after UNIT no longer appeared in every story.
* DidNotGetTheGirl: Flirted on and off with Jo Grant for his time on the show, and looks utterly crestfallen when she announces her marriage... according to an interview with Richard Franklin, the stage directions actually called for this.
* FaceHeelTurn
* ThoseTwoGuys: With Benton.
* VitriolicBestBuds: With the Doctor. Gets along marvellously with him and has the occasional snarky FriendshipMoment.
* WellIntentionedExtremist / HeelRealization: In "Invasion of the Dinosaurs".
[[/folder]]

[[folder: Sarah Jane Smith]]
!!Sarah Jane Smith (Third, Fourth, Tenth and Eleventh Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/sarah_jane_2532.png]]
->'''Sarah Jane:''' So, providing we don't burn up on re-entry and aren't suffocated on the way down, we'll probably be smashed to a pulp when we land.
->'''Fourth Doctor:''' Exactly. Sarah, you've put your finger on the one tiny flaw in our plan.
->'''Sarah Jane:''' ''Our'' plan? It's your plan!

-->Played by: Creator/ElisabethSladen (1973-76, 1983, 1993, 2006-2011)

Sarah Jane was a journalist from South Croydon, who met the Doctor while posing as her virologist aunt Lavinia. Perhaps the most archetypal companion (many older fans grew up with her as their companion), and the longest-serving if you count by number of serials. So popular that she got ''two'' spinoffs: the didn't-go-anywhere ''Series/K9AndCompany'' pilot (1981), and eventually the very successful Franchise/{{Whoniverse}} tie-in spinoff ''Series/TheSarahJaneAdventures'' (2007-2011), in which the Tenth and Eleventh Doctors also appear. Still the ''only'' classic series companion to show up in the new ''Series/DoctorWho'' TV series proper.

* BewareTheNiceOnes: Kind, sweet Sarah Jane has, among other things, blown up a rocket by sniping an explosive the Doctor planted there, and almost convinced the Doctor to commit genocide against the Daleks and was prepared to do it herself but for getting interrupted.
* BoundAndGagged: In "The Masque of Mandragora: Episode 3".
* {{Brainwashed}}: Holds the companion record for most times hypnotized. It seemed like she was hypnotized in ''every'' episode. Lampshaded in "[[Recap/DoctorWhoS14E2TheHandOfFear The Hand of Fear]]" and ''Series/TheSarahJaneAdventures''.
* BrickJoke: One that took around 30 years to land. When we last saw her in Creator/TomBaker's day, he'd dropped her off in a place he assured her was Croydon. We find out in Creator/DavidTennant's time that it was actually Aberdeen, Scotland.
* TheBusCameBack: Did it ever.
* ConveyorBeltODoom: Is put on one in "The Seeds of Doom", but to be fair she also (later in the story) rescued the Doctor from said same fate.
* CasualDangerDialog: After she starts getting used to the lifestyle, she can go almost toe to toe with the Fourth Doctor in terms of making jokes and quips in tense situations and happily reels off nursery rhymes along with him, although she much more obviously uses CasualDangerDialog to release stress than the Doctor.
* CharacterOutlivesActor: The Eleventh Doctor [[http://tardis.wikia.com/wiki/The_Girl_Who_Loved_Doctor_Who_(comic_story) mentioned to a fan]] in a [[RealWorldEpisode parallel universe]] that Sarah Jane is still alive and well despite her actress' death.
* CoolOldLady: After [[Recap/DoctorWhoS28E3SchoolReunion "School Reunion"]].
* ExpandedUniverse: Has more ExpandedUniverse appearances than ''anyone'' can list sensibly (though [[http://tardis.wikia.com/wiki/Sarah_Jane_Smith_-_List_of_Appearances here's]] a good attempt). She notably appeared in the direct-to-video release ''Downtime'' together with Victoria and the Brigadier, and had her own Creator/BigFinish spinoff for a while.
* FriendlySniper: Though it doesn't come up much because (like most companions to the Doctor) she doesn't usually even touch a weapon, in "Pyramids of Mars" it is established that she is a crack shot with a rifle.
* FriendshipMoment: The only companion the Doctor has called his "best friend."
* GoingForTheBigScoop: She typically runs into danger in order to get the story, especially early on.
* GrandmaWhatMassiveHotnessYouHave: Decades after leaving the Doctor, she's still fantastic.
* HotScoop: Sarah Jane features highly in the sexy companion polls on a regular basis.
* InsistentTerminology: Frequently called just Sarah in the classic series, but insists on "Sarah Jane" by ''Series/TheSarahJaneAdventures'' series 2.
* IntrepidReporter: Who actually reports on things during her time at UNIT.
* LadyOfAdventure: Jumps at the chance for space/time travel.
* OlderAndWiser: She's become increasingly Doctor-like.
* PluckyGirl: Starts out as this.
* RummageSaleReject: The Andy Pandy outfit from "[[Recap/DoctorWhoS14E2TheHandOfFear The Hand of Fear]]".
* [[CrouchingMoronHiddenBadass Screaming Damsel, Hidden Badass]]: She has a penchant for screaming... a lot. And for getting captured. Or brainwashed. However, the second she believes her Doctor to be in more trouble than he can handle, there is nothing, absolutely nothing, that will keep her from getting to his side and (with quite a frequency) rescuing ''him''.
* StrawFeminist: In her early appearances; this got toned down later.
* TheWatson: Gives a very human perspective to the very alien Fourth Doctor.
[[/folder]]

[[folder: Harry Sullivan]]
!!Dr. Harry Sullivan (Fourth Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/harrysull_1817.png]]
->''Steady, steady on, old girl, steady on.''

-->Played by: Ian Marter (1974-75)

A surgeon lieutenant at UNIT, of the old-fashioned gentleman variety. He joined team TARDIS after the Brigadier told him to keep an eye on the Doctor, which Harry took to mean "across time and space". Had a habit of getting stuck down gentle slopes and being attacked by entirely stationary animals.

* AuthorExistenceFailure: Ian Marter wrote a novel about his character ''Harry Sullivans War''. He'd planned to kill Harry off at the climax, but was prevented by the publisher, who was considering a sequel. Unfortunately Ian died the same month the book was published.
* BadassNormal: No matter what Four says, Harry had his badass moments.
* TheBusCameBack: After his departure as regular character in "Terror of the Zygons", he made one more appearance later in the season, in "The Android Invasion" (the last 1970s UNIT story to feature any recurring characters from the organisation).
* TheCharacterDiedWithHim: Implied in ''Series/TheSarahJaneAdventures''.
* TheChewToy: The Fourth Doctor picked on him ''a lot''.
* DistressedDude: All the time. Infamously got nearly eaten by a Skaro clam, despite clams not exactly being known for their high velocity or their predatory abilities.
* InformedAbility: He's a doctor (a literal one of medicine), but always seems out of his element. The Doctor teases him about it and jokes that Harry's only qualified to operate on sailors.
** Creator/BigFinish states that he ends up working as a virus researcher for NATO. Later, in ''Series/TheSarahJaneAdventures'', Sarah Jane confirms that after his time with the Doctor, he did pioneering work with vaccines, saving thousands of people.
* JustFollowingOrders: His reason for joining the TARDIS crew.
* TheMedic: He certainly does a fair bit of harm for someone who's medically trained, though.
* MildlyMilitary: He's a Royal Navy Surgeon-Lieutenant, but he rarely ever acts like it.
* TheNicknamer: Continually referred to Sarah Jane as "Old Thing" and had similar nicknames for other characters.
* QuintessentialBritishGentleman: "I say!"
* RememberTheNewGuy: He's first introduced as an established member of UNIT, who's apparently already very familiar with the Doctor.
* StrawMisogynist: Can be pretty sexist and condescending towards Sarah Jane. This was deliberate by the production team in order to contrast with Sarah Jane's StrawFeminist traits.
* YouLookFamiliar: Ian Marter had a minor part in the Third Doctor serial "[[Recap/DoctorWhoS10E2CarnivalOfMonsters Carnival of Monsters]]" before being cast as Harry.
[[/folder]]

[[folder: Leela of the Sevateem]]
!!Leela of the Sevateem (Fourth Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/leela_2288.png]]
->''Don't worry, Doctor. I found the answer: knife them in the neck!''

-->Played by: Louise Jameson (1977-78, 1993)

A human NobleSavage, descendant of an ill-fated colonization expedition and genetically altered into a perfect warrior. Primarily remembered for her FanService leotard and trying to kill anything that looked hostile -- however, though she was (initially) quite ignorant, she was definitely ''not'' stupid and made up for her lack of knowledge with her own insights, kindness and SimplemindedWisdom.

* ActionGirl: Her first instinct when faced with trouble was to hurt things until trouble went away again.
* AntiHero: Unlike [[TechnicalPacifist the Doctor]], Leela [[CombatPragmatist doesn't have any qualms]] about hurting or killing others. The Doctor pretty much caves in during their third story together and just lets her kill whatever's attacking them.
* {{Badass}}: With one of her most notable moments being when she killed a Sontaran by stabbing its probic vent with a throwing knife. Really, she's probably the most outright badass, combat-focused companion the Doctor's ever traveled with.
* BadassBoast: She has some of the most memorable in the series.
-->'''Leela''': Before I die I'll see this rathole ankle deep in blood. That is a promised thing.
* BloodKnight: A rare example of a blood knight who's both female and one of the good guys.
-->'''Leela''': Enjoy your death, Rutan! As I enjoyed killing you!
* BoundAndGagged: In "The Talons of Weng-Chiang: Episode 6".
* CargoCult: The Sevateem turn out to be the descendants of a crashed Survey Team, and ended up worshiping their own broken technology after a few generations of mucking about in tents.
* ConvenientlyAnOrphan: Her father dies in their very first scene, taking the tribe's trial instead of her after she's convicted for heresy.
* DetectEvil: Has the ability to sense evil.
* ExpandedUniverse: Though Leela gets name-dropped by the Doctor in a couple of TV episodes (and in an "I wonder how Leela's doing" context), she doesn't return for real until [[AudioPlay/BigFinishDoctorWho the audio play]] "Zagreus", where she teams up with Time Lady President Romana. The two then went on to star in [[AudioPlay/{{Gallifrey}} their own spin-off]] which ran from 2004-2013. Creator/BigFinish also sees her starring in several seasons of the ''Jago & Litefoot'' series.
* FurBikini: More precisely, a leather leotard and knee-high boots. Actress Louise Jameson once showed off a letter she received from a young girl viewer asking if Leela would "please wear more clothes". In a scene filmed for the Series 5 DVD release, Amy Pond comes close to uttering the trope name when she asks if Leela (seen in a photograph) is wearing a "leather bikini".
* HotBlooded
* IChooseToStay: She remains on Gallifrey and marries a Time Lord named Andred after the events of "The Invasion of Time".
* InterspeciesRomance[=/=]MayflyDecemberRomance: Andred is Gallifreyan, and thus HumanOutsideAlienInside and LongLived.
* JumpedAtTheCall: Simply walked into the TARDIS and pushed buttons until she was a companion, despite the Doctor's protests.
* NervesOfSteel: Her "fight or flight" response has no "flight" setting. She screams exactly once (not counting war cries), and that was when a [[RodentsOfUnusualSize giant mutant rat]] started chewing on her leg.
* NobleSavage: Very proud and headstrong.
* NubileSavage: Didn't wear a lot of clothing most of the time.
* OnlyOneName: As with the rest of her tribe.
* ParentService: Conceived as such.
* PsychoSidekick: She kills or inflicts potentially-lethal violence on quite a number of mooks, and the Doctor's protests often seem only token.
* PygmalionPlot: The original idea ([[NoHuggingNoKissing without the "falling in love with her" bit]]). Leela defies the trope by learning just enough about technology and manners to get by, but intentionally staying very true to her savage origins. On more than one occasion, she ends up convincing others that her way of life is just more ''fun''.
* RefusalOfTheCall: Much like the Fourth Doctor, she has zero desire to become the president of anything after she's accidentally elected, and -- with a quick ScrewThisImOuttaHere -- runs off in the TARDIS instead.
* SimpleMindedWisdom: Upon encountering some ThreeLawsCompliant robots, she snarkily posits that the second law must be "men can not harm robots" -- since they obviously can't be stabbed.
* TheStrategist: She's extremely adept at planning war tactics (though many of them in the end come down to "stab things really hard"). The episode "The Talons of Weng-Chiang" has her striking out on her own without the Doctor for a while, during which she manages to navigate Victorian London on her own and find exactly the allies she needs.
* {{Transhuman}}: Her tribe was the result of an ill-fated eugenics experiment involving two groups of humans. Her group had its courage and strength boosted; the other group got enhanced reasoning skills and telepathy.
* WeaponOfChoice: Her knife.
* WhatHappenedToTheMouse: Her fate in the Time War is unknown.
[[/folder]]

[[folder: K-9]]
!!K-9 (Fourth and Tenth Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/k-dw9_1451.png]]
->''I am not a dog. I dislike the terms "heel", "sit", and "boy".''

-->Voiced by: John Leeson (1977-79, 1980-81, 1983, 1993, 2006, 2008); David Brierley (1979-80)

The first robot-buddy of the franchise, hailing from the 51st century. Several versions existed. Shared a [[Series/K9AndCompany spinoff]] with Sarah Jane Smith and is a recurring character on ''Series/TheSarahJaneAdventures'', being a regular for series 3. Also got his own Australian-made {{spinoff}}, ''Series/{{K9}}''.

K-9 Mark I, the original built by Professor Marius, was a highly advanced robot built to resemble a dog. Known for his laser nose, propensity to speak in LiteralMinded terms, and his constant uttering of "Affirmative", or "Negative", which stuck with his descendants. He had a short run and remained with Leela on Gallifrey. This was because his prop's maintenance ''sucked''. Prone to break even if it hit a simple bump on the floor, he was quickly replaced by Mark II, the Doctor's own version of K-9. Mark I was later brought back in his own series but due to design copyrights, he got destroyed in a fight with the Jixen and regenerated through a special repair unit into a brand new appearance with LaserGuidedAmnesia to sever all ties with the ''Doctor Who'' franchise.

K-9 Mark II was the replacement for Mark I, who could now only stun, not kill things, because he was the Doctor's creation, and thus held his values. Affectionately referring to the Doctor as "Master", Mark II was conceived because K-9 was popular with the kids, but the prop needed a redesign after breaking down all the time. He was later carted off with Romana II near the end of Tom Baker's era to pave the way for a new slate of companions and Davison's Doctor.

K-9 Mark III was the rarely seen model who got given to Sarah Jane Smith as a gift from the Doctor on Earth in the OneEpisodeWonder ''K-9 and Company''. He turned up in a few comic stories and ''The Five Doctors'', and that was it. Until the revival era series brought him back and revealed that he had suffered a particularly bad existence. He got badly damaged, fell into disrepair, and rusted in Sarah Jane's attic because she didn't know how to fix a robot dog with futuristic technology, nor could she reveal said technology to anyone before its time. Mark III's functionality was somewhat restored by the Tenth Doctor, long enough for him to give his life by defeating the Krillitanes. He was then resurrected as Mark IV.

K-9 Mark IV is the revival era version of our tin dog made by the Tenth Doctor to bring back to life the one who died. This was the Doctor's gift to Sarah Jane, along with a sonic lipstick inside his casing. Mark IV was better associated as Sarah Jane's K-9 than the Doctor's, and this loyal robot called her "Mistress". He sported a more computerized-sounding voice and did not have as many locomotion woes because he could hover up stairs. He served as Sarah Jane's loyal pet and had an ongoing rivalry with Mr. Smith, the Xylok supercomputer. However, licensing issues left him [[CommutingOnABus trying to close a black hole after a Switzerland experiment went awry]] for the first three seasons of the ''The Sarah Jane Adventures''. Then, he had a more active role in the plot, until the Australian ''K-9'' series came out and the licensing disputes resurfaced, causing him to go to college with Luke Smith and return to light roles in the show.

* TheCatCameBack: The first K-9 (Mark I) was left with Leela on Gallifrey, the second K-9 (Mark II) was left with Romana II, a third and fourth K-9 (Mark III and IV) were given to Sarah Jane Smith...
* {{Badass}}: With a dash of BadassAdorable.
* CanineCompanion: The Doctor ''insisted'' on treating him like an actual dog.
* CatchPhrase: "Affirmative." "Negative." "Master/Mistress?"
* CuteMachines: Adorable.
* DoAnythingRobot: Laser beam, hacking computers, defensive protocols, [[Recap/DoctorWhoS15E4TheSunMakers beating the Doctor]] [[Recap/DoctorWhoS16E4TheAndroidsOfTara at Chess]], being a DeusExMachina...
* [[FamilyFriendlyFirearms Family Friendly Firearm]]: K-9's ever-convenient laser beam has a kill option, but is always set on [[StunGuns stun]].
* KidAppealCharacter - K-9 was a ''huge'' hit with children.
* LiteralMinded:
-->'''Romana:''' Uh, K-9, what is tennis?
-->'''K9:''' Real, lawn or table, mistress?
-->'''Romana:''' Never mind. Forget it.
-->'''K9:''' Forget. Erase memory banks concerning tennis. [whirring sound] Memory erased.
* TheNthDoctor: Largely subverted in that each K-9 unit is essentially the exact same thing as the previous model (except the version in the ''K-9'' spinoff, which looks drastically different).
* TheOtherDarrin: Leeson wound up replaced by Brierly in Season 17 for one reason or another, but came back for the other appearances.
* PunnyName: Get it? K-9? Because it looks like a dog! K-9! As in '''CA-NINE'''.
* RobotBuddy: To the Doctor, Romana, Leela and Sarah Jane.
* RobotDog: A medical robot, originally.
* ThinkNothingOfIt: Used a few times.
* {{Zeerust}}: Lampshaded in "School Reunion".
-->'''Rose:''' It looks so...[[DeaderThanDisco disco]].
-->'''Tenth Doctor:''' ''Oi! In the year 5000 this was cutting-edge!''
[[/folder]]

[[folder: Romana]]
!!Romana (Fourth Doctor)
->'''Fourth Doctor:''' Well, here we are. We've tracked him to his lair.
->'''Romana I:''' Yes, we've got him exactly where he wants us.

A Time Lord, or more properly a Time Lady, like the Doctor, and therefore has multiple regenerations. (Two were seen onscreen, dubbed Romana I and Romana II by fans; the ExpandedUniverse added several possible thirds.) Sent to assist the Doctor against his will in [[GottaCatchEmAll the search for]] the [[CosmicKeystone Key To Time]]. She was initially what one would call "book-smart": extremely well-educated (her academic record trounced the Doctor's), but quite young and with little practical experience.

!!!Tropes common to both incarnations:

* DeadpanSnarker: Seriously.
* DistaffCounterpart: To the Doctor.
* TheFashionista: Loved trying on new outfits, sometimes a few different ones in a single episode. Mary Tamm designed her own outfit in "The Androids Of Tara".
* HotScientist: Smarter than the Doctor, albeit less experienced.
* OnlyOneName: As with most Time Lords and Ladies. However, unlike many traveling Time Lords, she never adopts an alias, she just shortens her real name.
* OverlyLongName:
--> '''Romana:''' My name is Romanadvoratrelundar.
--> '''The Doctor:''' ...I'm so sorry about that. Is there anything we can do?
* VaporWear: Neither incarnation was fond of bras.

!!!Romana I
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/romana1_3433.png]]
->'''Romana I:''' You have absolutely no sense of responsibility whatsoever!
->'''The Doctor:''' What?
->'''Romana I:''' You're capricious, arrogant, self-opinionated, irrational, and you don't even know where we're going!
->'''The Doctor:''' ''Exactly!''

-->Played by: Mary Tamm (1978-79)

A tall, leggy, dark-haired woman; the initial concept of her was a "Creator/GraceKelly" sort of character. Had a penchant for armchair psychology. According to the Big Finish Audios, she regenerated when forces beyond her control were drawn out by the Key to Time and started to weaken her body, but she passed the reasons off as a whim.

* ActionGirl: Occurs unexpectedly in "The Pirate Planet" when she gets into a laser gun fight and wins.
* AgonyOfTheFeet: Romana's fashion statement got the better of her when she made a really bad choice of shoes in "The Stones of Blood" and wore ''high heels'' in a terrain filled with ''rocks''. Naturally, she switched to bare feet before the end of the first episode to alleviate the pain and then put on some pragmatic boots.
* DefrostingIceQueen: She relaxes ''a lot'' over the course of her tenure.
* DroppedABridgeOnHer: Without actually getting rid of the character. Since she's the same race as the Doctor, she could regenerate and stay on as a character. However, the regeneration comes with basically no explanation and is a lot like a standard PutOnABus. She doesn't even get a death scene -- Romana just happily walks into the console room with a new face and announces that she's regenerating, and the Doctor is absolutely baffled.
* LoveRedeems: The whole thing with the Shadow.
* PimpedOutCape: Made of [[FluffyFashionFeathers white feathers]] -- a gift from the Doctor on their first trip together.
* RichBitch: Quite posh.
* ShipTease: One Christmas BonusMaterial short had the Doctor and Romana I very obviously kissing [[KissingDiscretionShot just out of view]], following by a ''rather'' suggestive look from Creator/TomBaker.

!!!Romana II
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/romana2_8868.png]]
->'''The Doctor:''' Psst, you are wonderful.
->'''Romana II:''' Suppose I am. I've never really thought about it.

-->Played by: Lalla Ward (1979-81, 1983, 1993)

Shorter, with strawberry blonde hair. Still snarky, but a lot more bubbly and ConstantlyCurious. And if anything, her style flair got even more creative.

* {{Bifauxnen}}: At times.
* CatholicSchoolgirlsRule: Wears a very St. Trinian's style uniform in the "City of Death" serial. Lalla Ward, judging by interviews and the production notes, came up with the idea and had no concept it was a fetish.
* {{Cosplay}}: Many of her outfits have a distinct "fancy dress" flavour: the school uniform in "City of Death", the pink version of the Doctor's costume in "Destiny of the Daleks", the fox-hunting gear in "The Horns of Nimon"...
* ExpandedUniverse: Her Creator/BigFinish audio spinoff with Leela, appropriately called ''AudioPlay/{{Gallifrey}}'' (which has its own tropes page), ran for nine years (2004-2013).
** Several novels and audio dramas have also attempted to explain why Romana regenerated into the Lalla Ward version. These range from the short story "The Lying Old Witch in the Wardrobe" suggesting the TARDIS forced her to in a fit of jealousy (after impersonating Romana during the events of Destiny of the Daleks), to other ideas.
** Parts of the expanded universe also featured Romana after her return to Gallifrey undergoing a second regeneration into a morally ambiguous FemmeFatale.
* GenderedOutfit: Wore a pink version of the Doctor's outfit at one point.
* IChooseToStay: After three serials of trying to get out of E-Space, she decides to stay at the end of "Warriors' Gate" to help a race of [[KingOfBeasts enslaved time-traveling lion people.]]
* LadyOfAdventure: More keen on adventuring than her first incarnation.
* NervesOfSteel: An adventurous Time Lady like her picked them up really quickly after jousting against the Daleks.
* NeverFoundTheBody: Presumably died in the Time War.
* PlotHole: Her regeneration scene, written by Douglas Adams, is one of the series' most infamous ones. Basically, Romana shows up in Princess Astra's body and clothes and announces that she's regenerating for no reason whatsoever. When the Doctor scolds her for copying someone else's body, she merrily cycles through a series of different bodies until settling on the Astra look permanently. This type of regeneration contradicted just about everything in the series, was never explained in any way, and was never heard from again.
* ReasonableAuthorityFigure: The Creator/BigFinish audios see her becoming the Lady President of Gallifrey -- which was eventually [[spoiler:confirmed as canon in "The Day Of The Doctor", although only in tiny print in the background of a scene]].
* RomanceOnTheSet: With Creator/TomBaker. They got married, realized they'd accidentally fallen in love with each other's characters instead of with each other, and got divorced again just as quickly.
* ShipTease: The Australian commercials for Prime Computer made it more explicit with the Doctor ''proposing'' to Romana -- and she says "Yes!" before he even finishes.
* SortingAlgorithmOfDeadness: She gets a 1.833333.
* WholesomeCrossDresser: Although she just likes men's clothes rather than actually being a transvestite. Described in one DVD extra as the only woman who could pull off wearing a fruit salad on her head.
* YouLookFamiliar: The actress was a guest star as Princess Astra of Atrios in the story immediately preceding her debut. This was referenced in-story as Romana choosing that form to regenerate into.
[[/folder]]

[[folder: Adric]]
!!Adric (Fourth and Fifth Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/adric_7786.png]]
->''Could anyone pass the sodium chloride, please?''

-->Played by: Creator/MatthewWaterhouse (1980-82)

A snotty teenage maths geek from E-Space, annoying in the way that snotty teenage geek-boys usually are, but a well-meaning kid all the same. The Doctor saw him as an incompetent underling, despite the fact that Adric was an absolute genius when it came to maths -- just one who had a lot of learning to do about personal skills. As a result, Adric felt ignored, unwanted and rejected, and tried coming up with his own creative solutions to solving each episode's problems. Usually very unsuccessfully.

* AllOfTheOtherReindeer: Adric is everybody's ButtMonkey from the word go, and seen as an annoying tagalong more than anything else. At the start of "Earthshock", he actually confronts the Doctor about the way he's being treated by everybody, and how he's completely sick of it. The Doctor dashes out of the TARDIS as fast as he can just to avoid having to talk about those things.
* AntiHero: A bit of a jerk towards people at times. Notably, he felt that women aren't good for anything, which didn't exactly make him popular with fellow companions [[{{Tsundere}} Tegan]] and [[TeenGenius Nyssa]].
* TheArtfulDodger: It's even part of his character concept.
* BerserkButton: Adric ''puts a girl in a stranglehold'' for trying to take his math badge. ''In his first scene.''
* {{BFG}}: Used for a ''very'' weakly executed but surprisingly effective one-man BigDamnHeroes moment near the end of "Warriors' Gate."
* BigEater: A large amount of his character motivation throughout the episodes stems from just wanting to find some food.
* BizarreAlienBiology: His HealingFactor.
* DyingAlone: On a crashing spaceship, thinking he just failed to save the world.
* FakeDefector: And '''HOW.''' Considering he does this ''twice'' over the course of his time in the TARDIS ("[[Recap/DoctorWhoS18E4StateOfDecay State of Decay]]", and "[[Recap/DoctorWhos19E3Kinda Kinda]]"), it's not surprising that a lot of fans accuse him of "always siding with the villain." (He also has a habit of ''actually'' siding with the villain. Or being kidnapped by the villain and being forced to use his abilities for said villain. Or just stealing the villain's mecha and accidentally shooting at innocent bystanders...)
* FamousLastWords: "Now I'll never know if I was right..."
* GoodWithNumbers: His main thing.
* GuileHero: Becomes a plot point a few times.
* HealingFactor: You'd think it'd be a massively useful trait for a companion to have, given the scrapes they get into, but Adric's HealingFactor is only mentioned twice -- in "[[Recap/DoctorWhoS18E3FullCircle Full Circle]]" (his introductory story) and again in "[[Recap/DoctorWhoS19E4TheVisitation The Visitation]]".
* HorribleJudgeOfCharacter: Towards [[AffablyEvil Monarch]] in "[[Recap/DoctorWhoS19E2FourToDoomsday Four to Doomsday]]." [[UtopiaJustifiesTheMeans Turning the entire population of Earth into androids to rid them of disease]] sound like a ''good'' idea to you?
* HumanAliens: Adric's species had three evolutionary forms, only one of which is humanoid.
* IconicItem: His mathematical excellence badge. Seeing it shattered on the floor of the TARDIS at the end of "Earthshock" makes the SilentCredits all the more powerful.
* InformedAbility: For a supposed genius, Adric doesn't come off as being particularly intelligent.
* InsufferableGenius
* JerkWithAHeartOfGold: To an extent. The "jerk" part doesn't really emerge until season 19, but ultimately he still cares.
* LimitedWardrobe: Wears the same yellow rompers in every single story.
* LittleStowaway: How he got on the TARDIS in the first place.
* MrViceGuy: Driven by a desire for approval and acceptance. Whenever there's an older man in the plot, who's in charge, has a power complex and probably some kind of plan to take over the world, Adric will cling to the guy like a perfect little teacher's pet.
* NewPowersAsThePlotDemands: Ability-wise, Adric is a surprisingly well-equipped companion, demonstrating proficiency in lock-picking, sleight-of-hand, and knife-throwing, amongst [[GoodWithNumbers other]] [[HealingFactor things]]. The catch? Most of them only get used in one story, two if it's really lucky.
* PromotedFanboy: Matthew Waterhouse had a letter published in ''Doctor Who Magazine'' mere weeks before he was cast as Adric.
* RealitySubtext: Adric's older brother Varsh dies in "Full Circle," just two years after Matthew Waterhouse's own older brother Nicholas had commited suicide.
* SenselessSacrifice: Without achieving anything.
* TeenGenius: And proud of it.
* ThisLoserIsYou: Conceived as somebody who the geek element of the fanbase would empathise with, but was too accurate a portrayal of a snotty, socially-inept teenage geek to appear in any way flattering.
* WhatHaveWeEar: He teaches the Doctor a few coin tricks.
* WideEyedIdealist: The Doctor neatly summarizes it:
--> '''Fifth Doctor:''' Now listen to me, you young ''idiot''. You're not so much gullible as idealistic. I suppose it comes from your deprived delinquent background.
[[/folder]]

[[folder: Nyssa of Traken]]
!!Nyssa of Traken (Fourth and Fifth Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/nyssa_551.png]]
->''Do you have any books on telebiogenesis?''

-->Played by: Sarah Sutton (1981-83)

A teenaged biologist and the daughter of Tremas, who got his body possessed by the Master at the end of Fourth Doctor serial "[[Recap/DoctorWhoS18E6TheKeeperOfTraken The Keeper of Traken]]". Quiet, stoic and very handy with electronics. One of the most accomplished TARDIS pilots among the companions; she was even able to fly it solo (with assists from Tegan in "[[Recap/DoctorWhoS19E1Castrovalva Castrovalva]]" and Adric in "[[Recap/DoctorWhoS19E4TheVisitation The Visitation]]").

* EightiesHair: A big mess of brown curls.
* AngstWhatAngst: The implications of her tragic backstory are barely mentioned in the show, but the ExpandedUniverse would make use of all her emotional baggage. [[invoked]]
** TheStoic: It's implied, on the show and in the expanded universe, to be why her pain rarely shows.
* AscendedExtra: Was never intended to be a companion, until producer Creator/JohnNathanTurner decided otherwise.
* BewareTheNiceOnes: "[[Recap/DoctorWhoS20E1ArcOfInfinity Arc of Infinity]]". She ''pulls a gun'' on the ''Time Lord President,'' amongst many others. Sarah Sutton notes in the DVD commentary how unusually trigger-happy Nyssa was in this story.
* BrainyBrunette: Very clever. She was able to fly and repair the TARDIS, and could talk about space and time on the Doctor's own level, although she lacked his experience.
* GiantPoofySleeves: Wore them at times.
* HotScientist: Her first season had her covered from head to toe, after which (as Creator/PeterDavison put it) she suddenly magically lost half of her clothes.
* HumanAliens: Looks completely human.
* IChooseToStay: She leaves the TARDIS crew to stay on [[Recap/DoctorWhoS20E4Terminus Terminus]] and try to restructure it into a proper hospital.
* InnocentAliens: From a planet where evil is outright banned.
* InnocentFanserviceGirl: Famous for the skirt removal bit in "[[Recap/DoctorWhoS20E4Terminus Terminus]]", which the actor herself has described as "[[{{Fanservice}} a gift to the fans]]".
* [[LastOfHisKind Last Of Her Kind]]: The rest of Traken died in "[[Recap/DoctorWhoS18E7Logopolis Logopolis]]".
* LimitedWardrobe: Her burgundy velvet ensemble throughout Season 19.
* NiceGirl: Really sweet.
* OddFriendship: With Tegan, who is almost her polar opposite, and with Adric, who becomes like a little brother to her.
* PluckyGirl: Eager to see the world.
* PrettyInMink: One of her outfits had a fur-trimmed jacket.
* TheQuietOne: In comparison to Adric and Tegan.
* TheReliableOne: Stoic, quiet and capable.
* TeenGenius: Able to understand the TARDIS.
* TomboyWithAGirlyStreak: Wore make-up, feminine styled hair, and skirts, in addition to being a practical intellectual and adventurer.
* VaporWear: Especially noticable in "Terminus".
[[/folder]]

[[folder: Tegan Jovanka]]
!!Tegan Jovanka (Fourth and Fifth Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/teganj_5667.png]]
->'''Fifth Doctor:''' How do you feel now?
->'''Tegan:''' Groggy, sore, and bad-tempered.
->'''Fifth Doctor:''' Almost your old self, then!

-->Played by: Janet Fielding (1981-84)

A brash UsefulNotes/{{Australia}}n, inadvertently kidnapped from 1981 just as she was about to start a new job as a flight attendant. Created to help sell the show to Australia. Once described herself as "just a mouth on legs". One of a very few companions seen to pilot the TARDIS, albeit not very well. Longest-serving companion if you count by consecutive years active.

* AndIMustScream: Her second time hosting the Mara.
* EightiesHair: The short, Sheena Easton variety. "A Fix With Sontarans" later shows her with the eightiest hair imaginable.
* BeamMeUpScotty: Tegan's supposed fondness for using "Rabbits!" as a swear word. She actually only uses it twice.
* BookDumb: Subverted. Tegan was as well-educated as one would expect of a late-20th Century human. But she was flying around in the TARDIS with the Doctor, Adric, Nyssa and Turlough -- all of whom were aliens from very advanced species.
* BreakTheHaughty: Her second time hosting the Mara in her head doesn't leave her asleep through the ordeal, and she experiences it as a horrific AndIMustScream situation. She ends up with a disturbingly realistic trauma, crying and shaking while all the Doctor can do is hold her.
* TheCatCameBack: The Doctor eventually got her back to where she wanted to be (Heathrow, about to start her new job), but several months too late. She returns in the next season, having lost her job before she even arrived and managed to find the TARDIS again (by accident).
* DemonicPossession: Guess who becomes the Mara's host ''both'' times it shows up?
* DepartmentOfRedundancyDepartment: "How do we find the index file? Of course, if we had an index file, we could look it up in the index file under 'index file'! What am I saying?!"
* LimitedWardrobe: For some reason, keeps wearing her mauve cabin crew uniform throughout Season Nineteen.
* LineOfSightName: How the character was named. Nathan-Turner was either going to choose Tegan, for an Australian friend's niece, or Jovanka, after the wife of Yugoslavian president UsefulNotes/JosipBrozTito. Script-editor Christopher H. Bidmead read Tegan as the first name and Jovanka as the last name. The rest, as they say, is history.
* NoSell: She manages to shut an immortal, eternal being out of her mind in "Enlightenment", just because he was annoying her ''too'' much.
* OddFriendship: With Nyssa, who's quiet, scientifically-minded, and always willing to help out -- pretty much the exact opposite of Tegan.
* OptOut
--> It just isn't fun, anymore.
* PluckyGirl: Very.
* SarcasticDevotee: Tegan is probably the best-known example of this trope in the original series. She's usually either snarking at The Doctor, snarking at Adric, or snarking at the Monster of the Week (even, when, as in the Creator/BigFinish drama "Heroes of Sontar", it nearly gets both her and the Doctor killed...)
** For one brief, shining moment, [[Recap/DoctorWho1985JFIGSAFixWithSontarans she got into a snarking match with Six]].
* SexyStewardess: Even refuses to change into a more normal outfit during her first proper adventure.
* TookALevelInBadass: She's a NonActionSnarker for much of her initial run. But "Earthshock" finally sees her changing out of her stewardess gear and into a combat outfit, leaping into action, and shooting a Cyberman to death with its own gun.
* {{Tsundere}}: The ''deredere'' being nearly vestigial.
* UnfazedEveryman: Her first reaction on seeing the inside of the TARDIS isn't shock, or even curiousity -- but the immediate urge to go seek out the pilot and tell him he's a rubbish driver.
* VitriolicBestBuds: With Adric. They seem to care as much as they bicker, especially when one of them gets captured.
** With Turlough. Also got some ThoseTwoGuys going with Turlough.
* WeirdnessMagnet: Even more so than the Doctor. If it's in any way deadly, it'll find Tegan. Somehow.
[[/folder]]

[[folder: Vislor Turlough]]
!!Vislor Turlough (Fifth Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/turlough_5806.png]]
->''What is it about Earth people that makes them think a futile gesture is a noble one?''

-->Played by: Mark Strickson (1983-84)

An alien noble exiled to Earth after a revolution on his planet, Turlough is posing as an English schoolboy when the Doctor meets him. Gets drafted by the Black Guardian with a promise of freedom if he kills the Doctor, but Turlough just isn't evil enough to go through with it. While the Doctor and Turlough have had their differences, Turlough eventually grew to consider the Doctor his closest friend. Just don't expect him to admit it.

* AntiHero: Starts out as the TokenEvilTeammate, but it's quickly revealed he's not actually evil -- just troubled.
* AwesomeMcCoolname: Has a very alien name.
* ChewingTheScenery: A specialty of his.
* ChivalrousPervert: He even gets some in various ExpandedUniverse tales. Lord knows it'd never happen on camera.
* DeadpanSnarker: Particularly towards Tegan, who's [[{{Tsundere}} just as capable]] of snarking right back.
* DealWithTheDevil: How he starts out.
* DistressedDude: Done often because the writers couldn't figure out what to do with Turlough.
* {{Fanservice}}: He sure took a lot of clothes off in "[[Recap/DoctorWhoS21E5PlanetOfFire Planet of Fire]]"... not that the tight short-shorts were concealing much to begin with.
* HeelFaceTurn: He starts out plotting to kill the Doctor for the Black Guardian, but eventually becomes the Doctor's loyal friend.
* HumanAliens: Looks human, and can apparently pass as one in superficial medical examination.
* LastNameBasis: No one ever calls him "Vislor".
* LimitedWardrobe: Except for "[[BeachEpisode Planet]] of [[{{Fanservice}} Fire]]", he stays in his school uniform for his entire run. Fortunately, it's sufficiently low-key as a school uniform that the audience soon forgets what it's meant to be and he becomes a SharpDressedMan.
* LongLostSibling: His brother.
* MarkOfShame: On his arm.
* MinionWithAnFInEvil: To the Black Guardian.
* TheMole: Initially.
* MysteriousPast: And we learn what it is in his ''final episode''.
* RedHeadedHero: [[ExecutiveMeddling John Nathan-Turner]] insisted that the naturally blond Mark Strickson dye his hair ginger so as not to be confused with Peter Davison in long shots. (The alternative would have been for him to shave his head.)
* ShirtlessScene: Combined with SexySoakedShirt -- with speedos.
* TeenGenius: Although he may be older than the British schoolboy he was posing as. Understood the TARDIS well enough to set it to go to the Doctor on autopilot with a time-delayed takeoff.
* TheSoCalledCoward: Is actually quite happy to jump into action.
* ThickerThanWater: Cares tremendously for his brother.
* TokenEvilTeammate: When the Doctor first meets him. And even after he becomes a trusted companion and friend of the Doctor, he's just as liable to abandon or betray the Doctor as he is to rescue him and his companions. Turlough's morality remains slightly dubious, even up to his last episode, but he always seems to redeem himself in the end.
[[/folder]]

[[folder: Kamelion]]
!!Kamelion (Fifth Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/kamelion_192.png]]
->''Unexpected as it may be, I do have a mind of my own.''

-->Voiced by: Gerald Flood (1983-84) [[note]]Over 6 episodes[[/note]]

A shape-changing robot that the Master acquired as a sort of souvenir from the planet [[Recap/DoctorWhoS19E7TimeFlight Xeriphas]], this character quite literally vanished into the TARDIS rather than becoming a Companion. (The robot was a prop from some other project that was never made, was shoe-horned into ''Doctor Who'', and was promptly written out again as soon as the crew realised how silly it looked.) Showed up in "[[Recap/DoctorWhoS20E6TheKingsDemons The King's Demons]]" as a ''villain'' and puppet of the Master, got cut from an appearance in "[[Recap/DoctorWhoS21E2TheAwakening The Awakening]]" and [[DroppedABridgeOnHim made a final appearance]] in "[[Recap/DoctorWhoS21E5PlanetOfFire Planet of Fire]]".

* DroppedABridgeOnHim: He dies. The end.
* ExpandedUniverse: Actually fleshed-out in several novels, and makes one key appearance in the AudioPlay/BigFinishDoctorWho episode [[Recap/BigFinishDoctorWho091CircularTime "Circular Time"]].
** ''The Crystal Bucephalus'' by Craig Hinton, decides that Kamelion's [[WeakWilled unfortunate weakness]] would often work against both the heroes (in that Kamelion would be aiding the villain of the week, in this case a mobster/corrupt religious leader) and the villains (by specifically trying to undermine the villain in key ways that wouldn't be disobeying him). Said novel also took Kamelion and turned him from a robot into a complex sentient mathematical equation that ''likes'' taking the form of a robot instead. At least, this helps explain why the Master was so interested in him, as well as the way Kamelion changes form.
* ForgottenFallenFriend: Never mentioned again on the TV show, whatsoever. Creator/PaulCornell did bring back Kamelion for the Big Finish "Circular Time" audio drama, in a short episode that delves into the Fifth Doctor's rather unusual Regeneration scene.
* MercyKill: The less said about this one, the better.
* PunnyName: Get it?
* RobotBuddy: Literally.
* ShapeShifting: His main power.
* ShooOutTheNewGuy: Technically he was a companion for nearly a full year. In practice, he only showed up in 2 stories, the one where he joined and the one where the writers DroppedABridgeOnHim.
* SuspiciouslySimilarSubstitute: Was conceived as a successor to K-9, just not looking like a dog.
* WeakWilled: [[HeelFaceRevolvingDoor Very easily manipulated]] by the willpower of others.
* WeHardlyKnewYe: Only appears twice.
[[/folder]]

[[folder: Perpugilliam "Peri" Brown]]
!!Perpugilliam "Peri" Brown (Fifth and Sixth Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/peri_7550.png]]
->'''The Master:''' I am the Master!
->'''Peri:''' So what? I'm Perpugilliam Brown, and I can shout just as loud as you can!

-->Played by: Nicola Bryant (1984-86)

The series' only regular American companion ([[FakeAmerican supposedly]]), Peri was a botany student who stumbled into the TARDIS while she was on holiday. Got a bit of a shock during her third televised adventure, when her kind gentlemanly Doctor suddenly regenerated into a peremptory JerkAss and tried to murder her in the middle of his regeneration trauma. Developed a lot of attention from fans due to her tendency to wear [[FormFittingWardrobe tight clothes]].

* EightiesHair: With a headband and everything.
* AbhorrentAdmirer: Peri has an unfortunate knack for attracting lustful weirdos, such as Sharaz Jek and the Borad.
* AbusiveParents: She has a nightmare about her step-father in her first appearance: fans were left to draw their own (generally unpleasant) conclusions.
** In the ExpandedUniverse, she was molested as a child. BreakTheCutie indeed.
* AbsoluteCleavage: Just ask Creator/PeterDavison. Some of her wardrobe is actually modest though.
* BareYourMidriff: She regularly tied up her shirts to reveal her midriff.
* BoundAndGagged: In "Mindwarp: Episode 4".
* BreakTheCutie: The ExpandedUniverse seems to delight in doing this to poor Peri. One tale winds up killing off her entire family. And not just that, but it was an utter afterthought in a story's epilogue where Peri had ''already'' lost some people who were like family to her.
** Another example deals with the alternate possibilities coming from her final appearances. The ExpandedUniverse gave her quite a few different fates in varying (mutually incompatible) stories. The Creator/BigFinish episode [[Recap/BigFinishDoctorWhoCCS5E7PeriAndThePisconParadox "Peri And The Piscon Paradox"]] dives headfirst into this idea, and follows a Peri who's in her late 40s, living on Earth, and completely oblivious to the existence of a Sixth Doctor. It turns out that [[spoiler: the Celestial Intervention Agency decided to toy with her after [[Recap/DoctorWhoS23E2Mindwarp the Trial]] and made ''copies'' of her, just to find one fate for her that would give her a decent ending. ''This'' Peri wound up marrying her high school sweetheart... and was abused repeatedly by her "perfect husband", to the point where she's rendered incapable of having children]]. She slowly gets used to the idea of having a messed-up life, only to have it interrupted by a run-in with her old self as well as the Fifth ''and'' Sixth Doctors. MoodWhiplash at its best.
* DistressedDamsel: All the time.
* TheDitz: Season 22, mostly. Luckily, she improved drastically in her last season, not to mention her [[AudioPlay/BigFinishDoctorWho audio adventures]].
* EstablishingCharacterMoment: Her very first shot is of her in a bikini, after which she immediately proceeds to almost drown.
* FormFittingWardrobe: Had a thing for skin-tight clothes. Season 23, after a lot of family-friendly ExecutiveMeddling, toned down her wardrobe to conservative dress.
* KnowYourVines: Peri is a botanist, but [[InformedAbility rarely gets the opportunity to show it]].
* MaleGaze: Her introduction.
* MsFanservice: Her aforementioned tight wardrobe. Which was a bit unfair on poor Ms. Bryant, as both she and Colin have pointed out in more than one commentary that England can be ''[[CaptainObvious really cold]].''
* OohMeAccentsSlipping: A lot. Nicola Bryant auditioned for Peri by secretly impersonating an American accent because she wanted to be on the show, when the producers were scouting out someone who had a real American accent. She's actually got a native British accent and it slips through many times because it's her natural dialect.
* ParentService: Another blatant example like Leela before her.
* PluckyGirl: With Five, although with Six she's more of a Perpetually Annoyed Girl.
* [[ShouldntWeBeInSchoolRightNow Shouldn't Peri Be Back In School Right Now?]]: Depending on what her fate really is. See the alternate possibilities above.
* {{Tsundere}}: With the [[JerkWithAHeartOfGold Sixth Doctor]]. Also an example of VitriolicBestBuds.
[[/folder]]

[[folder: Melanie "Mel" Bush]]
!!Melanie "Mel" Bush (Sixth and Seventh Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/mel_5464.png]]
->'''''AAAIIIIIIIEEEEEEEEEEEEEE!!!'''''

-->Played by: Bonnie Langford (1986-87)

A computer programmer from Pease Pottage, Mel was well known both for having a particularly piercing scream and being obsessive about her health (and the Doctor's, for that matter). She had a cheerful disposition and a perfect memory.

* EightiesHair: Giant red curls.
* CharacterizationMarchesOn: Her obsession with the Doctor's health. Possibly justified as he did end up changing physically, just [[TheNthDoctor not in a way]] she expected.
* DitzyGenius: She's very clever, but ''very'' ditzy.
* FieryRedhead: Without the typical fighting capability.
* GiantPoofySleeves: With polka dots.
* IChooseToStay: With Sabalom Glitz, for some reason. (She was supposed to leave in the previous serial, Ray would have been the Doctor's companion, and Ace would have stayed with Glitz -- [[WordOfGod her lover]]. Things got shuffled around during production and Mel ended up staying with Glitz instead.)
* InformedAbility: Mel supposedly had a PhotographicMemory, but this never came up.
* MakeMeWannaShout: Bonnie Langford was hired because she had a scream "that could tear the paint off walls". It's [[http://www.youtube.com/watch?v=8928yni-Cl0 not far from the truth]].
* NiceGirl: She's very sweet.
* NoIndoorVoice: Infamously so.
* NoNameGiven: Mel's last name is never mentioned on screen. It was established as Bush in studio documents and a book written by the series' producer at the time, and also appears in [[Franchise/DoctorWhoExpandedUniverse the Expanded Universe]].
* ScreamingWoman: And how! The actress was hired for her scream which could "tear the paint off walls".
** For [[Recap/DoctorWhoS23E3TerrorOfTheVervoids "Terror of the Vervoids"]], JohnNathanTurner asked her to do a CliffHanger scream on an "F" note, just so her scream would segue seamlessly into the ending credits. She did.
[[/folder]]

[[folder: Dorothy "Ace" [=McShane=] ]]
!!Dorothy "Ace" [=McShane=] (Seventh Doctor)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/ace_8002.png]]
->'''Seventh Doctor:''' I don't believe you've met my young friend Ace, an expert in calorification [[note]]setting things on fire[[/note]], incineration [[note]]setting things on fire[[/note]], carbonization [[note]]setting things on fire[[/note]], and inflammation [[note]]setting things on fire[[/note]].

-->Played by: Creator/SophieAldred (1987-89)

A [[TheEighties late-eighties]] teenager rescued from an ice planet where she was working as a waitress (long story). Notable as one of the relatively few classic series girls who actively attempted to beat up the monsters rather than scream at them. She also liked to deploy her favourite weapon, a homemade explosive she called Nitro-9. Always called the Doctor "Professor", even after he asked her not to. This started out as an example of her anti-authority bent, then turned into an affectionate nickname between them. Oh, and she was the reason the CrowningMomentOfAwesome trope page was created.

* EightiesHair: A tight ponytail or braid near the top of her head.
* AbortedArc: Had the show not been placed on hiatus, the Doctor would have enrolled Ace in ''the Time Lord Academy'' so she could undergo training to become a Time Lord. Oh yes. The episode dealing with this, "Thin Ice", was eventually recorded by BigFinish in audio format.
** A version of this also happens in the audioplay "Death Comes To Time."
* ActionGirl: She defeated a Dalek with a ''baseball bat''.
* AllergicToEvil: In the "Remembrance of the Daleks" novelization, any sign of racism brings flashbacks to the fire in Manisha's apartment.
* AmbiguouslyGay: Very much DependingOnTheWriter. Creator Ian Briggs [[AllThereInTheManual wrote a sexual liaison with Sabalom Glitz into her character outline]], although it was never made explicit in the series. [[WordOfGay Other writers]], like Rona Munro, intentionally wrote her as a ButchLesbian (as much as the BBC would permit anyway). Ace occasionally has chemistry with male guest stars (notably Captain Soren in "[[Recap/DoctorWhoS26E3TheCurseOfFenric The Curse of Fenric]]"), but it's much more common with the ladies. Her TV series appearances average out to BiTheWay, which Sophie Aldred herself agrees with.
** In the ExpandedUniverse, she ReallyGetsAround, although she's only seen hooking up with men.
* AntiHero: She's not a very mentally stable person, and she's gotten in trouble with the law before.
* AscendedExtra: The original plan was for Ace and Glitz to leave Ice World at the end of the episode, and Ray (from "Delta And The Bannermen") would have been Seven's companion. When that didn't pan out, Ace became an AscendedExtra and Mel stayed with Glitz instead. This is also the reason Glitz knows where Ace lives -- it was originally meant as ForeShadowing. WordOfGod has it that Glitz and Ace were sleeping together and that he took her virginity.
* {{Badass}}: She once beat up a Dalek. ''With a [[BatterUp baseball bat]]''. Inspired the CrowningMomentOfAwesome trope. Also ActionGirl, BadButt.
* BrokenBird: The girl had ''issues''. And guidance counsellors.
* CartwrightCurse: Became close to [[Recap/DoctorWhoS25E1RemembranceOfTheDaleks Mike Smith]], [[Recap/DoctorWhoS26E2GhostLight Gwendoline Pritchard]], [[Recap/DoctorWhoS26E3TheCurseOfFenric Captain Sorin]] and [[Recap/DoctorWhoS26E4Survival Karra]]; none of them made it to the end of their respective serials. The ''Literature/DoctorWhoNewAdventures'' continued the trend.
* CatchPhrase: Enjoyed shouting "Ace!" (meaning "cool"). Since this is also her nickname, it almost seems like she is engaging in PokemonSpeak.
** She said "Wicked!" so often that the Doctor himself was inspired to say it once.
** Also "Oi!"
* CrazyPrepared: Even before meeting the Doctor, she was in the habit of taking a portable rope ladder with her wherever she went.
* DarkAndTroubledPast: The epitome of this trope, to the point where the type of Doctor that Ace really needs is a therapist.
* DarkActionGirl: Already shows it in the TV series, and really becomes this trope in the ''Literature/DoctorWhoNewAdventures'' novels.
* {{Delinquent|s}}: Stated to have been one in her backstory: she was excluded from school for blowing up the art room, burned down an abandoned house, and (probably for this) was cautioned by police. She is also able to drive a car despite not being old enough to hold a licence, suggesting illicit joyriding.
* ExpandedUniverse: One of the most frequently appearing companions in the Franchise/DoctorWhoExpandedUniverse, especially during her friendship with Characters/BerniceSummerfield in the ''VirginNewAdventures'' series. In Creator/BigFinish, ''two'' versions of Ace appear: the regular one, and the one in the Creator/BigFinish stories that take place in the ''VirginNewAdventures'' series (still following us?). She's also all over the ''Magazine/DoctorWhoMagazine'' comics. All ExpandedUniverse incarnations of Ace have her gradually becoming ''[[UpToEleven even more badass]]''.
* GirlOfTheWeek: The censored WordOfGay version. Ace appeared in nine stories, and rapidly established a close friendship with an attractive young female character in at least five of them.
* GoodLookingPrivates: Ace always falls for men in uniform who later turn out to be the enemy.
* GoshDangItToHeck: Much of the TotallyRadical comes from the writers' attempts to have her insult people or express emotion without swearing.
* KilledOffForReal: In the infamous ''Magazine/DoctorWhoMagazine'' comics story "Ground Zero". As noted, though, Ace had several conflicting fates in the Franchise/DoctorWhoExpandedUniverse. And this one got ignored by Creator/RussellTDavies, who wanted Aldred in ''Series/TheSarahJaneAdventures'', were it not for the untimely death of Creator/ElisabethSladen.
* TheLadette: Although she only fully achieves this trope in terms of debauched lifestyle after her Literature/DoctorWhoNewAdventures age-up.
* MadBomber: She's very quick to whip out those homemade explosives of hers. The Doctor is more than aware of this.
--> '''Seventh Doctor:''' "ACE! Hand me some of that Nitro-9 you're not carrying."
* MeaningfulName: Her name's Dorothy, and she ends up in the future by a "time storm". If that wasn't enough, [[AllThereInTheManual her middle name is ''Gale''.]] Does this [[Literature/TheWonderfulWizardOfOz remind you of anything]]?
* NervesOfSteel: She does get scared occasionally, but pushes on regardless. When she doesn't ''want'' to push on, the Doctor [[TricksterMentor makes her]].
* TheNicknamer: She's best known for calling the Doctor "Professor", but she invented names for other characters as well. Mel ended up as "Doughnut".
* NoNameGiven: Her surname is not given on screen, but audios use Dorothy Gale [=McShane=].
* PopCulturedBadass: Look closely at her jacket, and you can spot (among other things) a ''Comicbook/{{Watchmen}}'' pin, two ''ComicStrip/RupertBear'' pictures, several ''Series/BluePeter'' decorations, a Gerry Anderson fan club membership button, and a ''Series/{{Thunderbirds}}'' patch.
* PsychoSidekick: Downplayed, in that a vague description of the dynamic between them would make Ace seem like a Psycho Sidekick, but the Seventh Doctor is much more ruthless than she is, in a less personally violent way.
** Especially in "The Curse of Fenric" where the Doctor [[spoiler:cruelly calls her an "emotional cripple". It's in order to [[CruelToBeKind save her life]] by forcing her to lose faith in him so the big bad can't destroy the world.]] But it's still a pretty nasty thing to do to a character established as carrying a lot of emotional baggage.
* ReallyGetsAround: Not on television, but in the Franchise/DoctorWhoExpandedUniverse novels, Ace seems to shag someone in every novel.
* StableTimeLoop: She meets [[spoiler:her grandmother, who she helped rescue her mother, therefore causing her own existence]].
* StuffBlowingUp: The Doctor's companions are generally there to help minimise collateral damage, but she bucked the trend by bringing her own supply of ''home-made explosives'' (Nitro-9) on her travels. The Doctor tended to discourage this...except when it was useful to him ("Hand me some of that Nitro-9 you're [[BlatantLies not carrying]]").
* SupportingProtagonist: When Andrew Cartmel tried to re-instil some mystery into the Doctor and made him a conniving Chessmaster, Ace ended up getting the most character development of any companion from the classic series.
* {{Tomboy}}: She's not even remotely like previous companions.
* TotallyRadical: Try and listen to some of the dialogue and the slang she uses without cringing. Go on. We dare you. (Ian Briggs, the writer who created her, gave her a speech pattern based on teenagers he knew, but was forced to change the slang because his real teenagers were using words the BBC wouldn't allow its fictional teenagers to say.)
** A bit of an [[AluminumChristmasTrees Aluminum Christmas Tree]] as a large portion of her slang is [[http://www.peevish.co.uk/slang/index.htm genuine]] (if occasionally obscure) British slang.
* WeaponOfChoice: Explosives!
* WholesomeCrossdresser: In "Ghost Light".
* YouCalledMeXItMustBeSerious: If Ace calls the Doctor "Doctor" instead of "Professor", it's a sign she's genuinely upset.
[[/folder]]

[[folder: Dr. Grace Holloway]]
!!Dr. Grace Holloway (Seventh[[note]]sort of[[/note]] and Eighth Doctors)
[[quoteright:150:http://static.tvtropes.org/pmwiki/pub/images/graceh_3346.png]]
->''Doctor, I only have ''one'' life. Can you try to keep that in mind?''

-->Played by: Creator/DaphneAshbrook (1996)

Only on-screen companion of the Eighth Doctor, Grace also has the dubious distinction of having ''killed'' the Doctor. She's a cardiologist from 1999 with a fondness for opera.

* AllLoveIsUnrequited: Her boyfriend leaves her. Her new love interest is an amnesiac Time Lord.
-->''"I finally meet the right guy... and he's from another planet!"''
* ArbitrarySkepticism: She gets that the Doctor has two hearts, but keeps refusing to believe anything he tells her.
* AtTheOperaTonight: She's attending the opera when she's called to operate on the Doctor.
* BigDamnKiss: The first companion to ever be kissed on the lips by the Doctor. She promptly asks him to do it again. The Master gets a kiss in as well, when she's BrainwashedAndCrazy.
** Creator/DaphneAshbrook still shares little kisses with Creator/PaulMcGann at conventions, and has taken to kissing other Doctors as well -- she says she's trying to collect them all. So far, she'd managed to lure in Creator/ColinBaker and Creator/PeterDavison.
* BlackEyesOfEvil: When she's possessed by the Master's influence.
* BrainwashedAndCrazy: Due to being hit by the Master's poison/acidic saliva.
* DeadpanSnarker: With a lot of eye-rolling.
* HeroesWantRedheads: And likes snogging them.
* HospitalHottie: Especially in her big dress.
* NiceJobBreakingItHero: Her attempt to save the Seventh Doctor was the ''cause'' of his death (she was thrown by his BizarreAlienBiology), forcing him to regenerate into Eight.
* NoHuggingNoKissing: Forever averted. She and the Doctor happily make out.
* {{Omake}}: Creator/DaphneAshbrook is a strong contender for "[[OneOfUs geekiest companion]]" in the whole series, and enjoys chatting with fans on [[http://daphneashbrook.tumblr.com her tumblr]], frequently in character as Grace.
* PeoplePuppets: To the Master.
* RedHeadedHero: Although it's not Creator/DaphneAshbrook's natural hair colour.
* RefusalOfTheCall: Ultimately, she decides not to go with the Doctor, and the Doctor refuses to stay on Earth with her. (Creator/BigFinish confirms that they stay friends, and that he visits her on occasion.)
* WritingAroundTrademarks: Due to extensive copyright issues, Grace is still not allowed to appear in ''Series/DoctorWho'' adaptations. The ''Magazine/DoctorWhoMagazine'' comics somehow found a way around the legal issues and gave her a major guest appearance in one story, but other Franchise/DoctorWhoExpandedUniverse spinoffs can't go any further than mentioning her by name. This hasn't prevented Daphne Ashbrook from appearing in other roles, though, and she's reunited (albeit as a very different character) with Creator/PaulMcGann in Creator/BigFinish.
[[/folder]]
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