[[caption-width-right:350:"Information: [[TwistedChristmas full scream ahead.]]"]]

->'''Heavenly Host:''' Information: the ''Titanic'' is en route from the planet Sto in the Cassavalian Belt. The purpose of the cruise is to experience primitive cultures.\\
'''The Doctor:''' ''Titanic''. Um... who... thought of the name?\\
'''Heavenly Host:''' Information: it was chosen as the most famous vessel of the planet Earth.\\
'''The Doctor:''' ... Did they tell you ''why'' it was famous?

The one with the cyborg cactus. Ohh... sorry, [[CallForward that's]] [[Recap/DoctorWhoS30E17E18TheEndOfTime racist.]] Let's try again.

The one where if [[Creator/JohnBarrowman Jack]] was around when the ship went down, [[Film/Titanic1997 we wouldn't have to worry about him freezing to death.]] [[BittersweetEnding ...No?]] Hey, at least this Jack can come back to life! And he wouldn't drown in the cold vacuum of space, either! He'd just... [[FateWorseThanDeath die repeatedly and come back to life...]] each time with his blood freezing in his veins [[Recap/DoctorWhoS36E5Oxygen and the fluids in his eyes boiling...]] [[LampshadeHanging This is getting us nowhere.]]

[=*sigh*=]... Okay. [[RuleOfThree One last time.]] The one with the ''Titanic''. [[RecycledInSpace IN SPACE!]]\\
''There'' we go!

Written by Creator/RussellTDavies.

Just as we exoticise other cultures, apparently, aliens exoticise ours. Or the parts of Earth culture they like, stuck together willy-nilly so that the end result is a charming Old Earth Christmas pleasure cruise... set aboard a spaceship recreation of Earth's most famous ship, the ''UsefulNotes/RMSTitanic''.

The Doctor, who's appeared aboard after accidentally crashing into it (picking up from the last episode), can recognize a dire portent when he sees one. He quickly repairs the damage to his interior and then properly materializes on board the ship. Sure enough, it's not long before trouble arises: the ship's mechanical servants start to malfunction and harm people. However, the calm before the storm allows him to befriend several of the guests on the ship, including the lovely [[Music/KylieMinogue Astrid Peth]], a [[{{Meido}} waitress]] that has taken this job to further her dream of traveling through space and seeing the stars. Although he's a stowaway, the Doctor dons his best tuxedo and poses as a passenger with privilege... Now if only his tuxedo weren't a calling card for bad luck...

Ship's historian Mr. Copper offers to show a group of people on board the ''Titanic'' a tour of Earth, using a teleporter system and matching bracelets for those who want to explore the planet as the ship orbits the pretty blue world. Except, Mr. Copper has ''horribly'' misinformed knowledge about the Earth after spending his life on Sto. The Doctor goes down to London, which is all but totally deserted. Can you blame 'em? They've had two Christmases visited by angry extraterrestrials, and are now wise about the holiday season's knack for insane alien activity. Apart from the Queen and a news reporter, London's a ghost town. But there is one friendly face still kicking around. He's a newsstand owner. Meet Wilfred Mott. He's going to be an important fella later. At the moment, he's an ordinary person whom the Doctor takes a liking to. Wilf is keeping vigil in the city like the brave Queen, even though the rest of London is running scared. The Doctor assures him, "Far as I know, this year, nothing to worry about."

[[TemptingFate Uh-oh...]]

Just when the Doctor and company return to the ''Titanic'' and are all set to enjoy a relaxing cruise around the Earth, the ship's captain, Hardaker, sets the [[CerebusSyndrome trouble]] into motion. He deactivates the spaceship's shields, then magnetizes the hull to purposely attract three blazing meteors so they crash against the ship. He's in league with someone's evil plan to destroy the ''Titanic'' starliner. The captain is bound and determined to [[DrivenToSuicide kill himself]]; he's already [[SoapOperaDisease terminally ill]], and because of the life insurance being offered for his family as compensation, that's all it takes to extinguish whatever hope is left for him to keep on living. The Doctor notices the meteors and tries to alert the captain, but a steward forces him away from a system he isn't authorized to use. He rushes over to a singer's microphone and at least manages to make a few heads turn with the warning they're in danger. These smart few people follow him to safety. Midshipman Frame tries to stop the captain from destroying the ''Titanic'' but gets shot for his efforts. The captain reaps his death wish, while many, many more people are decimated by both the resultant meteor rain creaming sections of the ship... and the once-docile Heavenly Host carrying out orders to kill off everyone on the ''Titanic''. From this point on, all hell breaks loose. The Doctor tries to mount a rescue operation, but the damage to the ''Titanic'' jars his TARDIS loose from the wreckage and it floats off into space. Now, he has to do things the hard way and navigate everyone through the forsaken vessel while Heavenly Host are running amok.

The Doctor has the usual motley collection of eccentrics around him: nice waitress Astrid (who the Doctor picks as his next companion), HappilyMarried contest winners Morvin and Foon, {{Jerkass}} Rickston Slade, Mr. Copper, the alleged Earth expert, and Bannakaffalatta, the spiny red cyborg ([[FantasticRacism though don't tell anyone]]). They first try to make their way to the bridge, which is now under the inexpert, if enthusiastic, command of one Midshipman Frame, after the captain's untimely death. But one of the evil Christmas angel robots is coaxed into revealing that the ''real'' source of evil leadership is on Deck 31. Now they must defy the dying ship and the creepy angel robots to get there.

And creepy they are. When a pocket of survivors comes to Midshipman Frame's attention, he can't do much more than listen helplessly as the angels ''kill'' them.

Still, they haven't spotted the Doctor ''et al'' yet, as the motley crew sneaks through the ship's secret passages.

[[AnyoneCanDie There are deaths]]. Morvin falls to his death in a reactor, followed by Foon, who refuses to survive without her husband and decides to take the plunge, too, [[TakingYouWithMe taking a Heavenly Host with her]]. Bannakaffalatta gets over the cyborg prejudice he faced and makes a HeroicSacrifice by using his power core to disable the Heavenly Host, which drains it and causes him to perish only minutes later, saying goodbye to his crush Astrid. Mr. Copper takes Bannakaffalatta's core to use as a weapon against the Heavenly Host. Rickston [[TheLoad continues to bitch and moan and get in the way]], being insufferably selfish. The Doctor discovers that he gets to ask the Host (the robot angels) three questions by prodding around and discovering a protocol loophole that forces them to reveal information at his request, but, he wastes two of them. Eventually, Deck 31 is reached and proves to contain the ''Titanic'''s ludicrously wealthy yet cyborgified and unhappy owner, Max Capricorn, who is bent on crashing it into Earth and riding out the collision in an impact-proof chamber, in a complicated revenge scheme against the board of directors which owns the ship and locked him out of the company. And the Doctor is powerless in the arms of the robot angels, so Astrid has to take the HeroicSacrifice on herself.

With Capricorn dead, the Doctor now has full command of the Host, who have defaulted to the next highest authority, and messianically spreads his arms to have the angels carry him up to... the bridge. It's time to stop the ''Titanic'' from crashing. The Doctor comforts the wounded Midshipman Frame and asks what his name is... [[Recap/DoctorWhoS28E12ArmyOfGhosts to his wonderful delight]], it's [[ContinuityNod Alonzo]]! With an, "''Allons-y'', Alonzo!", the Doctor does everything he can with Alonzo to regain control of the rapidly crashing starliner before it creates a nuclear catastrophe, while the surviving passengers -- and [[MyFriendsAndZoidberg Rickston]] -- hang on for dear life. The Doctor really knuckles down when the ship crosses through Earth's atmosphere. He calls Buckingham Palace to have it evacuated and even manages to keep the ''Titanic'' from crashing into London. The Queen waves at him as he sails past. Poor Wilfred Mott shouts in outrage at the sight of the ship as those aliens threaten to antagonize the third Christmas in a row.

After the storm has been weathered, the Doctor learns that Astrid [[HopeSpot still has a chance of survival]]. The teleporter system has a safety feature. In case of an accident, it stores a passenger's molecules safely. Astrid [[ChekhovsGun was wearing a teleporter bracelet]] when she fell to her doom. The Doctor desperately sonics the teleport system, but the disaster that befell the ship has severely damaged the system and it isn't responding. Unfortunately, when the Doctor tries to recover Astrid to a physical body, she gets stuck in between life and death. Mr. Copper has to make the Doctor stop trying in vain to get Astrid back as she was -- the system is just too far gone to make it possible. All that's left is an echo of Astrid with the ghost of consciousness. Astrid gets a final kiss from the Doctor and becomes stardust as he scatters her remnants into space, so Astrid can enjoy her dream of seeing the stars and traveling the universe for eternity.

Rickston, being an opportunistic slimeball, has pulled up his stakes in Max Capricorn Cruiseliners. Instead, he invested all his shares in Capricorn's rivals, making the ungrateful turd [[KarmaHoudini filthy rich]]. Luckily, Rickston takes the best course of action in the whole time we've known him -- he ''leaves''. Mr. Copper tells the Doctor that although people like Rickston may survive, [[{{Foreshadowing}} it would be wrong to decide who lived and died.]] [[Recap/DoctorWhoS30E16TheWatersOfMars Such power would make somebody a monster. If only the Doctor didn't forget so easily.]]

The Doctor and Mr. Copper finally walk away from the crash and step onto Earth, gazing at the site of London by the water. As luck would have it, the TARDIS knew where to land, too. It is right there, waiting for the Doctor. Once again, it is not snowing on Christmas. That's the ballast from the ''Titanic''[='s=] water tanks. The Doctor properly educates Mr. Copper on Earth knowledge, this time letting him stay in a place where he's sure to get it right. Mr Copper asks if he can come along in the TARDIS as the next companion, but the Doctor ''really'' doesn't want any more companions right now, after having all the of the previous ones either lost forever or in love with him or both. However, Mr Copper also happens to have £1,000,000 in his bank account, so he probably won't be struggling in the future. It's the end result of a life as a travelling salesman and lying about a degree in "Earthonomics" that netted him the job of Ship Historian and a credit card that would pay for anything the passengers wanted when they teleported onto Earth. In fact, he's jumping for joy. See? Karma works both ways. But neither Mr. Copper nor the Doctor will ever forget Astrid. The Doctor goes on his merry way, wishing, "Merry Christmas, Mister Copper."
!!Information: This episode contains examples of the following tropes:

* ActuallyPrettyFunny: Max can't help himself but approve of the Doctor's puns.
* AnAssKickingChristmas: Naturally. The Doctor [[LampshadeHanging lampshades]] it.
* AnyoneCanDie: Many of the Doctor's new friends die in this episode, including Astrid, who appears to be the next Companion. Slade and Midshipman Frame surprisingly survive despite having AssholeVictim and RedShirt, respectively, written all over them.
* AscendedToAHigherPlaneOfExistence: At the end, Astrid becomes stardust to travel the universe.
* AssholeVictim: Averted: the liar who conned his way into a job [[note]] Who, to be fair, isn't really that bad a guy [[/note]] and the callous, self-centered businessman not only survive, but [[spoiler: they are the only survivors in the Doctor's party. The other, mostly decent, people all perish]]. It's discussed:
--> Of all the people to survive, he's not the one you would have chosen, is he? But I suppose if you could choose who lives and who dies, that would make you some kind of monster.
* BadassBoast: "I'm the Doctor. I'm a Time Lord. I'm from the planet Gallifrey in the constellation of Kasterborous. I am [[ReallySevenHundredYearsOld 903 years]] old, and I'm the man who's gonna save your lives and all six billion people on the planet below. You got a problem with that?"
* BigDamnKiss: Astrid surprises the Doctor with her knowledge of Earth Christmas traditions.
* BittersweetEnding: The Titanic ''doesn't'' crash and no one on Earth is killed. The Doctor even manages to avoid hitting Buckingham Palace and Mr.Copper gets a wonderful retirement. On the other hand, most of the Titanic's crew dies.
* BrickJoke:
** After having wanted to since "[[Recap/DoctorWhoS28E12ArmyOfGhosts Army of Ghosts]]", the Doctor finally gets the chance to say "Allons-y, Alonzo!"
** When the Doctor gets to meet Max for real, the same tooth twinkles with the "my name is Max" bit. "It really does that?"
%%* {{Camp}}: With bells on.
* TheCaptain: Captain Hardaker is the authority on the ship and gives leave to the other crewmen. He has also been paid off to wreck the ''Titanic''.
* CelebrityParadox: The Doctor had mentioned Kylie and her song "Never Too Late" two seasons earlier in "[[Recap/DoctorWhoS28E7TheIdiotsLantern The Idiot's Lantern]]", before she appeared here as a guest star.
* ChestBlaster: Bannakaffalatta produces an EMP from his chest to take out several Robot Angels at the cost of his life.
* ChristmasEpisode: "Look, I don't know where you're getting your information, but you're completely wrong. [[AnAssKickingChristmas Christmas isn't a barbaric festival of blood.]] It's about love and thanksgiving and generosity and... who am I kidding, all of my Christmases are like this."
* [[invoked]]CriticalResearchFailure: "To repeat, I am Mr. Copper, the ship's historian, and I shall be taking you to old London town in the country of U.K., ruled over by Good King Wenceslas. Now, human beings worship the great god Santa, a creature with fearsome claws, and his wife Mary. And every Christmas Eve, the people of U.K. go to war with the country of UsefulNotes/{{Turkey}}. [[ImAHumanitarian They then eat the Turkey people for Christmas dinner]]... like ''savages''!"
-->'''The Doctor:''' 'Scuse me? ''[Mr. Copper looks at him.]'' Sorry, sorry, but, um... where did you get all this from?\\
'''Mr. Copper:''' [[BlatantLies Well, I have a First Class Degree in Earthonomics.]]
* CrushKillDestroy: Information: Kill! Kill kill kill!
* {{Cyborg}}:
** Bannakaffalatta had an accident and his chest reveals cyborg parts.
** Max Capricorn is nothing but a head on wheels. He mentions that at one-hundred-and-sixty-odd years, it's to keep him alive.
* DamageControl: Frame does what he can from the bridge to keep the ''Titanic'' in orbit and to keep the power up.
* DeadlyDisc: The Heavenly Host's halos.
* DeadStarWalking: Let's face it, Kylie Minogue probably wasn't going to become a full-time companion.
* DespairEventHorizon: When Morvin falls into the engines, his wife Foon doesn't see much to live for and does a TakingYouWithMe with a Host as she jumps into the engines herself.
* DisappointedByTheMotive: The Doctor's reaction to Capricorn's "retirement plan". It's petty and unoriginal.
-->'''The Doctor:''' So that's the plan? A ''retirement'' plan? Two thousand people on board this ship, six billion underneath us, all of them slaughtered, and why? Because Max Capricorn is a ''loser!''\\
'''Max Capricorn:''' I ''never'' lose!\\
'''The Doctor:''' You can't even sink the ''Titanic''!
* DisorganizedOutlineSpeech: The Doctor's rescue plan can't decide whether to use letters or numbers.
* DisproportionateRetribution: Max Capricorn gets ousted by his own board of trustees and blamed for the company's failure, so he contrives to crash the ''Titanic'' (2000 killed) into Earth (6 ''billion'' killed) and get the trustees jailed for mass murder. ''Wow.''
* DistressedDude: Creator/DavidTennant gets manhandled ''a lot'' in this episode.
* DoomedContrarian: Subverted in the case of Rickston Slade. He's a rude, selfish asshole, and there's little doubt that the audience is just waiting for the sweet catharsis that his death/comeuppance will bring. He's one of the few people who live, and he walks away from the whole thing ever richer, because he just invested in the rivals of the spaceliner that had the accident. The look on the Doctor's face when Slade is thanking him and explaining his good fortune was probably shared by more than a few audience members. Then he ''literally'' just walks away from it all. No last-second comeuppance or ''anything''.
** At the same time, it's not as though he deserved comeuppance ''for anything''. His only "crime" was being greedy and rude, and by all indication, he was just an average wealthy socialite, just like almost everyone else on the ship. He didn't deserve to die any more than anyone else on board. It is the fact that the Doctor ''wishes'' he died instead of some of the others that serves as an early indication as to how dark he can get when left alone, [[YouBastard and shows that many of the audience would fall into the same traps he does later on.]]
* DrivenToSuicide:
** Poor Foon jumped into the engine because her husband already fell into it.
** All the same, Hardaker, who has six months left and went out with a bang.
* EarlyBirdCameo: Bernard Cribbins as the unidentified newspaper vendor who is revealed in the next series to be Donna Noble's grandfather, Wilf Mott.
* {{EMP}}: Used to take out the robot angels by Bannakaffalatta, and then with the piece salvaged from his cyborg body.
* {{Expy}}:
** The Hosts look and act like the antagonists of a serial from the Tom Baker years, "[[Recap/DoctorWhoS14E5TheRobotsOfDeath The Robots of Death]]".
** The Hosts also resemble the "pilot fish" from the [[Recap/DoctorWho2005CSTheChristmasInvasion previous]] Christmas [[Recap/DoctorWho2006CSTheRunawayBride specials]].
* FallenAngel: When the Host remove their halos to use as weapons, the posts that held the halos remain, looking like devil horns.
* FantasticRacism: Sto has a thing against cyborgs. At least they are allowed to marry now.
* FascinatingEyebrow: The Doctor, during Mr. Copper's [[BlatantLies lecture on Earth history]].
* FlatWhat: In the ColdOpen, the Doctor's trademark escalating [[BigWhat "What? WHAT?]] ''[[BigWhat WHAT?!]]''" ends with a life preserver rolling into his hands with the word "TITANIC" written on it. Cue this.
* ForegoneConclusion: Information: It's a ship called the ''[[TemptingFate Titanic]]'', [[SarcasmMode surely this will be a smooth voyage with absolutely no danger at all.]] It even hits something in the very first scene of the episode -- the TARDIS!
* {{Foreshadowing}}: At the end, Mr. Copper says if the Doctor ''could'' choose who lives and dies, he'd be a monster. [[Recap/DoctorWhoS30E16TheWatersOfMars A while down the line]], the Doctor does try to choose who lives and dies...
* ForkliftFu: Astrid uses this against Max Capricorn.
* AGodAmI: The Doctor's anguished cry of "I can do ''anything''!" Then he must confront the fact that for how often he's ranked himself with gods, he really isn't, and really can't.
* GoingNative: The Doctor indirectly admits that Earth is the closest thing to a home he's got without Gallifrey.
* GoryDiscretionShot: It's only assumed -- but with very good reason -- that the trapped technician is decapitated by the Host's halo.
* GravitySucks:
** Without engine power, the ''Titanic'' will crash into Earth because of its gravity.
** The [=TARDIS=] is an aversion. It's not being sucked in; it's programmed to descend to the nearest planet if set adrift.
* HappilyMarried: Morvin and Foon don't let a little outer space trouble or 5,000 credit phone bill break their marriage.
* HeroicSacrifice: ''Lots'' of these. Poor Foon (TakingYouWithMe on a host), Bannakaffalatta (CastFromLifeSpan) and Astrid (TakingYouWithMe on the BigBad).
* HopeSpot: Astrid was wearing a teleporter bracelet! Surely those must have some kind of safety feature! They do, but it got broken in the chaos and the Doctor only can reassemble half of her, leaving her as a ghost. He's forced to MercyKill her, turning her into stardust so she could fly through the universe as she always wanted to.
* HumanAliens: Apart from Bannakaffalatta, does anyone on board ''really'' look like they're from another planet?
* HumansThroughAlienEyes: New Zealand may be beautiful, but this is just a street, in London. And it's empty (and it ''stinks''). Astrid thinks it's riveting.
* IAlwaysWantedToSayThat: Twice, with "Allons-y, Alonzo!" and "TakeMeToYourLeader".
* InconvenientSummons: The Doctor is teleported back to the ship while in the middle of a conversation with Wilfred. Right while he's trying to reassure the man nothing weird will happen, even.
* InsistentTerminology: Bannakaffalatta takes it personally when the Doctor tries to call him "Banna".
* ItsACostumePartyISwear: The higher-class passengers told Morvin and Foon the Christmas party was Fancy Dress. Hence the tacky Western outfits.
* {{Jerkass}}: Rickston spends the entire episode with one KickTheDog moment after another, trying to leave people to die and insulting people and insisting that, e.g., he be the first one across the dangerous bridge. However, even he gets a PetTheDog moment witnessing the death/recording of Astrid. Then he spoils it at the end by talking about how much richer he is. Jerk. If nothing else, part of the reason he seems happy is because it screwed over [[CorruptCorporateExecutive Max Capricorn's Board of Directors]], who share responsibility for the disaster.
* JerkassHasAPoint: Rickston declaring the officer who opens a dead airlock, despite the Doctor's warnings, and insists everything will be alright, an idiot. Also, while it's mean-spirited and in bad taste, even Morvin ([[FamousLastWords as his last words]]) admits that Rickston's demand that Morvin and Foon, the two heaviest members of the group, should go last across the precarious bridge, is totally sound and sensible. Finally, he's right-on when he mentions that Foon's request for the Doctor to come back across the bridge to her will just get everyone killed, and even the Doctor realizes it.
* JerkWithAHeartOfJerk: Rickston solemnly thanks the Doctor and hugs Copper tightly, then undermines this by cheerily talking about how rich the disaster has made him, right before he leaves.
* JustAFleshWound: Midshipman Frame does rather well for having been shot early in the episode, albeit spending most of his time painfully clutching a stomach wound.
* KilledMidSentence: Morvin Van Hoff falls to his death just as he's agreeing that he and his wife should go last across the rickety bridge across the chasm.
* KillEmAll: Information: You are all going to die. Oh, wow, does it ever fill that one.
* KnowNothingKnowItAll: Mr. Copper, the "Earth Expert" is either totally misinformed or just [[AssPull making it up as he goes along]]. It turns out later his "degree" was from the equivalent of a night-school (and ''dry-cleaning service''), and he lied just to get away from Sto.
* LeaveNoWitnesses: Information: It is the plan.
* LegacyVesselNaming: The cruise liner is called the ''Titanic'' in honour of the most famous vessel in Earth's history. The Doctor and the BigBad are the only people to understand the significance of the name.
* LightIsNotGood: Information: Shiny white-and-gold angels! ''[[UncannyValley Creepy]]'' shiny white-and-gold [[SuperPoweredRobotMeterMaids robot]] angels that decapitate people with their halos.
* LiteralGenie: Information: The angels will answer three questions. Any three questions? Wait, I didn't mean to do that, can I take it back? What do you mean, "No"?
* MauveShirt: The group of people with the Doctor are not quickly killed off. We learn about their personal backgrounds and get to feel for them. Sadly, that's what makes the deaths of several of those sympathetic people even harder to stomach. The one ingrate who we ''don't'' learn or witness anything meaningful, sympathetic, or redeeming about their character survives and makes all of the above all the more raw.
* MeaningfulName:
** Played straight with the ''Titanic''. The Doctor knows that this will be bad immediately.
** Averted with Astrid, whose name is an anagram of TARDIS (causing much speculation online), but nothing comes of it. On the other hand, although its etymology is different, the name Astrid evokes the Latin word ''aster'', meaning "star", while "peth" is Welsh for "thing"; therefore "Astrid Peth" could be taken to mean "star thing", which is highly plot-relevant.
* {{Meido}}: Astrid wears a little apron and a short skirt.
* MenAreTheExpendableGender: Averted. The four ''Titanic'' survivors (including the Doctor) are all male, in stark contrast to the actual Titanic. Indeed, nobody in-universe makes any distinction.
* MoralMyopia: Captain Hardaker, while upset that he was given a young man on the crew, still seems to think that the money for his family is worth killing all of the passengers, as well as the billions of people who live on Earth.
* NoOSHACompliance: This is a ZigzaggedTrope. Long two-foot-wide metal bridges as the only way over a nuclear reactor engine but the area was damaged from the whole meteors striking the ship. Then again, Max did ''want'' the thing to fail.
* NotSoDifferent: The Doctor and Astrid have a conversation about why she decided to sign up on the cruise, wanting to see different skies, rather than stay on her own boring planet, much like the Doctor did.
* OhCrap: Information: You are all going to die.
* OverlyLongName: Bannakaffalatta.
-->'''The Doctor:''' Look, can I just call you Banna? It's going to save a lot of time.\\
'''Bannakaffalatta:''' [[InsistentTerminology No! Bannakaffalatta!]]
* {{Pun}}: The Doctor's joke about "How to get ahead in business" does not go over well.
* PhonyDegree: Mr Copper's degree in Earthonomics, which he eventually admits came from Mrs. Golightly's Happy Travelling University and Dry Cleaners.
* PluckyMiddie: Midshipman Frame just qualified and he's very happy to be on the voyage. This is much to the displeasure of Captain Hardaker, [[{{Foreshadowing}} who was promised he'd have no young officers on this voyage.]] Frame ends up holed up on the bridge trying to help where he can.
* PreAsskickingOneLiner: A couple of ''awesome'' occasions. Too bad they both precede a HeroicSacrifice.
--->'''Bannakaffalatta:''' Bannakaffalatta stop! Bannakaffalatta proud! Bannakaffalatta CYBORG!\\\
'''Astrid:''' Mr. Capricorn... I resign.
* RealLifeWritesThePlot: Astrid is set up to join the Doctor as a new companion, but Music/KylieMinogue probably can't spend a year filming in Wales.
* RecycledInSpace: ''Film/ThePoseidonAdventure'' [-IN SPACE-]! It's even lampshaded, since the space ship is appropriately named the ''Titanic''.
* RedHerringShirt: Midshipman Alonzo Frame is shot in the first act to reveal the captain's treachery, but he hangs on and survives to the end of the episode.
* RunningGag:
** Another Christmas, another disaster menacing London. This time the citizens wise up and evacuate the city to stay safe of whatever could happen. Once again, the "snow" falling during Christmas is actually from a damaged spaceship.
** Geoffrey Palmer makes his third appearance in ''Doctor Who'' and, as in the previous two, gets killed very quickly.
* ScullyBox: Deployed in-universe. Astrid pulls up a box and stands up on it in order to give the Doctor a goodbye kiss.
* ShoutOut:
** To ''VideoGame/StarshipTitanic''.
** Information: The penultimate security protocol number the Doctor tries on the Host before settling on 1 and getting a result is [[Franchise/TheHitchhikersGuideToTheGalaxy 42]].
** The story contains a number of Shout Outs to the work of ''Doctor Who'' scriptwriter and later ''Series/BlakesSeven'' script editor Creator/ChrisBoucher. The look and personality of the Hosts is based on the killer robots in Boucher's Fourth Doctor story "[[Recap/DoctorWhoS14E5TheRobotsOfDeath The Robots of Death]]". The damaged Host repeating "Kill... kill", the Host's hand stuck in the door, and the secret room full of Hosts on stretchers are also direct copies of moments from the same story. The teleport bracelets are from ''Blake's 7'', and the Angels' "Information: ..." catchphrase is from Zen, the ''Liberator'' computer in ''Blake's 7''.
** The damaged cruiseliner and passengers having to make their way through precarious, badly damaged, collapse-at-any-moment, tilted areas and makeshift catwalks references ''Film/ThePoseidonAdventure'' and its numerous remakes.
* SlowMotionFall: Any time someone falls to their death, which happens frequently and to people you like.
* SortingAlgorithmOfMortality: Subverted. Everything says that [[{{Jerkass}} Rickston]] will have [[DroppedABridgeOnHim a bridge dropped on him]] early on, while Astrid will survive and leave with the Doctor; [[KarmaHoudini no such]] [[HeroicSacrifice luck]].
* SpaceIsAnOcean: This spaceship ''Titanic'' even has a ''life preserver''. Not an escape capsule, but a floatation device.
* SpaceSailing: The space ''Titanic'' was built to look just like the original, complete with fake smokestacks.
* StellarName: Astrid was named as a more subtle version of "Astra". The anagram is apparently a coincidence.
* StupidSacrifice: Foon really didn't need to throw herself off the bridge with the Host once she roped it. It's implied she was DrivenToSuicide.
* SuperPoweredRobotMeterMaids: Information: The Hosts are meant to be servants and decorations, yet their halos can decapitate people and they have the strength of ten. It's justified in that they were installed because the owner was planning to use them to [[KillEmAll kill everyone]].
* SuspiciouslyAproposMusic: At the ''Titanic'''s Christmas party, there's a band playing a song called "The Stowaway", all about a man who's lost a lover sneaking aboard a ship and has been found by someone.
* TakingYouWithMe: Foon takes a Host with her when she decides to kill herself after her husband's death.
* TeleportersAndTransporters: Through the bracelets they give to the passengers. It can also theoretically restore a killed passenger, but when the Doctor tries this with Astrid, the system is too badly damaged.
* TemporaryLoveInterest: Astrid quickly bonds with The Doctor and made plans to become his next companion. They even share a kiss (she said it was a "tradition", echoing the fact that him getting surprise-snogged is a RunningGag.) Then she dies.
* TemptingFate:
** The Doctor tries to tell Wilf the newsvendor that this year, nothing disastrous is going happen. He gets teleported mid-sentence, and almost immediately after, disaster strikes.
** The Doctor mocks Capricorn for being [[SpringtimeForHitler too incompetent to sink the Titanic.]] Capricorn responds by shutting down the ship's engines.
* ThirdPersonPerson: Bannakaffalatta, though wouldn't ''you'' be if you had a name like that?
* ThrowTheDogABone: After swearing to save the entire group, and failing all but two, the Doctor is horrified that Rickston proves to be the JerkAss he appeared to be. Copper reassures the Doctor, however, and proves himself worthy of the Doctor's good graces.
* TogetherInDeath: Morvin and Foon -- {{Invoked}} [[DrivenToSuicide by Foon]], who [[TakingYouWithMe took one of the Host with her]].
* TriumphantReprise: After the Doctor successfully manages to stop the Titanic crashing onto Buckingham Palace, an instrumental version of "The Stowaway", which had played during the party, starts playing.
* TwinkleSmile: Max Capricorn's repeating advertisement has a tooth that does this when he says "My name is ''Maaaxxx''". And when the Doctor meets Capricorn in person:
-->'''The Doctor:''' ''[surprised]'' It really does that?
* UnflinchingWalk: The Doctor does this after Astrid's death with the ship's debris falling around him.
* UpUpAndAway: The two Hosts carrying the Doctor takes this pose with their free arms to crash through the deck.
* VerbalTic: Information: The Host cannot begin a single sentence without first saying: "Information".
* WealthyEverAfter: Mr Copper, having no idea about Earth culture or currency, loaded a pre-paid card with "a million" thinking it was only good for trinkets. The Doctor tells him that he now has ''fifty six million and fifty eight'' credits. He just has to be careful with it.
* WhatDidYouExpectWhenYouNamedIt: A ship called the ''Titanic''! WhatCouldPossiblyGoWrong is invoked -- it was named after the "most famous ship of Earth" -- they just didn't know what it was famous ''for''. The passengers, having no idea of Earth culture, had no idea of the original ship's history. It's further justified in that, given Max's plans and depending on when the ship was built, it could've been a sick joke on his part.
* WholePlotReference: ''Film/ThePoseidonAdventure'' [[RecycledInSpace IN SPACE!]]
* WritersCannotDoMath: If 1 million pounds is roughly 50 million credits, that means that the 5000 credit phone bill that Foon and Morvin were lamenting and talking about never being able to pay was roughly... 100 pounds.
* TheXOfY: "Voyage of the Damned".
* YankTheDogsChain: The Doctor swears he's going to save everyone. One by one, he fails all but two of them.
* YouAreInCommandNow:
** Midshipman Frame ends up being the only officer on the bridge after Captain Hardaker gets the ship rammed by meteors.
** After Astrid kills Max, the Hosts latch onto the nearest authority figure and that would be The Doctor.
* YourApprovalFillsMeWithShame: Played with, as "Saving Your Life Fills Me With Shame". Rickston thanks the Doctor for saving his life, and then he goes on to say how much money he made off this venture and goes back to ordering around his employees. This brings the Doctor no joy.
* YouSeeImDying: The Captain is dying, and scuppers his own ship in exchange for his family being looked after.
[[caption-width-right:350:"[[{{Infodump}} Information]]: '''[[WhamLine KILL.]]'''"]]