- On a meta level, any reference to the show's lost episodes has become this once a new discovery is made (so anything prior to October 2013);
- The "Lost in Time" DVD, for example, references the then-108 missing episodes, when the number would become 97 by the time the DVD releases were finished, and includes a few now-redundant "orphaned" episodes note . Bonus points for including "The Enemy of the World" in the CD promo's list of missing stories.
- 1998's The Missing Years documentary is another memorable example, including Ian Levine's claim that "please prove me wrong, but I think there will always be 110 missing Doctor Who episodes", because (as per his example) finding an episode as old as "Marco Polo" (34 years) is extremely unlikely; "Enemy" was 45 years old when its recovery was announced in 2013. Naturally, the DVD version has an addendum covering the two episodes found since, which is also out of date.
- Classic Doctor Who generally steered away from sexuality, claiming that there was "no hanky-panky in the TARDIS" - in fact, one of the main controversies of Amy Pond was that she was "too sexy for Doctor Who". As it turns out, River Song is the direct result of Amy and Rory having sex aboard the TARDIS.
- In "The Edge of Destruction", the "Fast Return Switch" label on the console foreshadows Doc Brown's Dymo-tape labels all over the inside of his time machine.
- "The Rescue": The companions' comments about the Doctor "not getting any younger", before the writers had come up with the concept of regeneration. Also, that he can't just lose a companion and just carry on as normal - something which he would later regularly do.
- Jodie Whittaker and Christopher Eccleston appeared opposite one another as, respectively, the title character and Creon in a 2012 performance of Antigone. That ought to make for some interesting fan theories.
- The Doctor criticizes the Monk for interfering, which is what the Time Lords put him on trial for. The Doctor seems to have affected history in a way similar to the Monk. Then there is the Time Lord Victorious.
- In the old-school story "The Crusade", the First Doctor, after seeing Ian knighted by King Richard, laments to Vicki, "I wish he had knighted me." Vicki laughs and says, "That'll be the day." Jump ahead 41 years to "Tooth and Claw", where the Tenth Doctor finally does get knighted, and Vicki's comment becomes a lot funnier. That'll be the day indeed, Vicki. Could also be construed as a Brick Joke.
- "The Massacre" can be this as the story had the Abbot of Amboise as the Doctor's doppleganger. Then Peter Capaldi became the Doctor just after playing another 17th century French clergyman, Cardinal Richelieu, in The Musketeers.
- The fact that "The Celestial Toymaker", played by Michael Gough, appears alongside a character named Dodo and later voices a Dodo in the Tim Burton Alice in Wonderland (2010) film.
- In "The Gunfighters", the Doctor's companions Steven and Dodo wear fairly silly cowboy outfits much as we see years later with Marty McFly in Back to the Future Part III. The Doctor's response is to ask why they can't wear inconspicuous clothing like he does. The First Doctor's costume was a Victorian outfit which, while it could be out of place, was nothing like what we would see in his future incarnations, such as the Third Doctor's velvet jackets and ruffled shirts. And then, of course, there's Colin Baker. The less said about that, the better.
- "The Tenth Planet":
- The newscaster who gives a "Don't panic!" broadcast is played by an actor named Glenn Beck. Really.
- The following from Ben, while preparing for a "Die Hard" on an X situation, several years before the introduction of the Sonic Screwdriver:Ben: Aww, just imagine trying to tackle one of them geezers [the Cybermen] with a screwdriver!
- In "Spearhead from Space", the ringing sound emitted by the meteorite which the poacher digs up sounds exactly like somebody's cell phone.
- In "The Time Monster", the Brigadier berates the Doctor: "One moment you're talking about the whole universe blowing up, and the next you're going on about tea!" This sums up one of the Doctor's most famous monologues at the end of the last story of the classic era, "Survival": "Somewhere there's danger, somewhere there's injustice, somewhere else the tea is getting cold."
- With the rise of certain internet acronyms bandied about as insults, it's quite funny that the Third and Fourth Doctor companion whose gimmick was that she was an outspoken feminist has the initials "SJ".
- Sarah yelling, "Look at that great spider!" in "The Time Warrior". Guess what showed up four stories later?
- In "Robot", one of the Fourth Doctor's proposed outfits is a pierrot costume. It so resembles the costume worn in David Bowie's "Ashes to Ashes" video that you'd almost think it was a Whole Costume Reference if it didn't predate the video by six years. Much later, in "The Leisure Hive" (which was contemporaneous with "Ashes to Ashes"), we get long shots of the characters walking across a British beach in winter.
- Guy Siner played a Kaled (a space Nazi) in "Genesis of the Daleks". One decade later he would play an adorable Camp Gay Wehrmacht in 'Allo 'Allo!
- "The Talons of Weng-Chiang"
- Ever since The '80s, the episode title has been hard to say without reminding people of the band Wang Chung.
- The Doctor dresses and acts like Sherlock Holmes, with various other characters filling in for Doctor Watson, Inspector Lestrade, Mrs. Hudson and Professor Moriarty. One-time Doctor Who showrunner Steven Moffat is the co-creator of Sherlock with fellow modern series writer Mark Gatiss. It also ends up being not the last time the Doctor dresses up as Sherlock Holmes.
- Tom Baker would later play The Great Detective in a four-part BBC adaptation of The Hound of the Baskervilles that was produced by Barry Letts (who produced the show during Jon Pertwee's tenure and cast Baker as the Doctor) and featured Caroline John (the Third Doctor's companion Liz Shaw) as Laura Lyons.
- In "The Ribos Operation", both the Doctor and Romana (as well as others) claim to be from the North.
- "City of Death":
- In "Warriors' Gate", the shot of the freed Tharils walking through the gate in single file towards the end of the story cannot be taken seriously by anyone who's ever played Lemmings.
- This 1981 Tom Baker interview on Times TV has Tom making the decision to go on television dressed in a slimcut navy blue pinstripe suit with incongruous cream canvas trainers. That'd be a pretty good outfit for a Doctor to wear, wouldn't it? Maybe in a couple of decades.
- The Sixth Doctor's debut story, "The Twin Dilemma" features him having to help an old friend named Edgeworthnote , who was friends with the Doctor in the distant past, yet has suddenly become antagonistic and is working with an evil person out of a misguided desire to save people. A little under two decades later, a lawyer by the name of Phoenix Wright found himself in very much the same situation.
- In "Attack of the Cybermen", a Cyberman fluffs his lines and says, "It is a fat controller." In the revival, they would have a fat controller...sort of.
- And not long before the episode, there was the TV debut of a different Fat Controller.
- In "The Trial of a Time Lord" our hero battles his evil counterpart in the Matrix, well before Neo took the red pill.
- In episode 1 of "Silver Nemesis", the Doctor is briefly seen wearing a fez and holding a mop... and not for the last time...
- In "Battlefield", Ace shouts a very familiar word as she jumps through the portal after the Doctor.
- The TV Movie:
- Just before the start of "Dimensions in Time" there is a brief segment of Jon Pertwee (as the Doctor) visiting Noel Edmunds; the Doctor tells Edmunds that he's seen him in year 2010. 2010 has come and gone, and Edmunds is still on television and currently presents (among other things) Deal or No Deal, the Doctor's answers to Noel asking if he does serious programming ("I don't visit fantasy land!") is another point to consider here. Even funnier considering how Edmonds takes his relatively low-brow daytime gameshow as Serious Business.
- In the Doctor Who spoof sketch "The Curse of Fatal Death", the Tenth Doctor is portrayed as being so full of himself that he licks a mirror. Later, the series was relaunched and we got a canonical Tenth Doctor who was quite egotistical and liked to lick things.
That Doctor was played by Richard E. Grant. Grant would star as the Doctor again in a non-canonical 2005 web-series called Scream of the Shalka. It contains a blink-and-you-miss-it cameo of pre-fame David Tennant being horribly killed. Around the same time as that, Richard E. Grant was in a cooking/comedy show called Posh Nosh where he played a married man who was very obviously gay. His lover was played by... guess.
On a related note, Grant's Posh Nosh co-star Arabella Weir voiced the role of a female Third Doctor in Big Finish's What If? audio drama Exile - which also featured David Tennant as an unnamed Time Lord looking for the Doctor. And Weir happens to be a good friend of David Tennant (he's the godfather of her children).
Back to "Fatal Death," that spoof also featured a female incarnation of the Doctor falling in love with a male incarnation of The Master. Fast-forward fifteen years, and we get a female incarnation of The Master falling in love with a male incarnation of the Doctor.
Then there's the fact that thanks to the Doctor going through a rapid succession of regenerations in "Fatal Death", the female Doctor is the Thirteenth. Despite some complications in the numbering scheme, the canonical Thirteenth Doctor ended up also being a blonde woman.
- The old Whovian adage "Don't skip Nine" becomes funnier when we find out that there was a forgotten incarnation of the Doctor after Eight. In other words, we all skipped Nine.
- In "The End of the World", Jabe at one point asks if Rose is a prostitute the Doctor hired. Billie Piper subsequently went on to play one in Secret Diary of a Call Girl...and to make it even funnier, one of her clients was Matt Smith.
Related: In "Aliens of London", the Doctor tries to talk his way out of the trouble he's in for "borrowing" Rose for a year instead of a day, saying he'd hired her as his "companion." Cue the immediate question about the nature of that relationship.
- In "Aliens of London", when discussing Jackie's distress, the Doctor adds "Well, she's not coming with us. I don't do families." Give it five seasons, Doctor.
- In "World War Three", Jackie banters about how the Doctor and Rose should be knighted and wonders whether or not the Doctor even eats normal food.
- The Doctor refers to a Cyberman head as "old friend", before correcting himself by saying "old enemy". In "The Time of the Doctor", the Doctor ends up befriending an actual Cyberman head, Handles.
- An otherwise throwaway line used in Van Statten's Establishing Character Moment successfully predicted the results of the 2012 election.
Similarly, there is mention of a meteor landing in Russia in 2013. Fast forward to 2013 and...
There's also his remark about owning the internet. Fast forward to 2012 and SOPA, and it nearly became a reality.
- In "The Long Game", there's a news report on how the Face of Boe is pregnant. Then watch the end of Last of the Time Lords where it's implied that Jack will become the Face of Boe in the future. Makes his comment from Torchwood about never wanting to get pregnant again even funnier.
- "Father's Day", set in 1987, contains contemporary background music, including a late-80s hit record by a Lancashire-born pop singer. The song? Rick Astley's "Never Gonna Give You Up".
- Not long after The Weakest Link was launched, an editorial cartoon depicted a Dalek trading its Catch Phrase for "You are the Weakest Link...Goodbye." Of course, the Daleks would not do so well when meeting the Anne Droid,
- The first thing the Tenth Doctor says after waking up in "The Christmas Invasion" is "Did you miss me?". For bonus points, here's David Tennant lip-syncing to "Stayin' Alive".
- In the same episode, the Doctor says that you can't use Mind Control to make someone commit suicide. Kinda funny for David Tennant to say that, considering that he later played Kilgrave in Jessica Jones, who mind-controls people into killing themselves through cutting their own throats (Ruben), shooting themselves in the head (Trish Walker), and walking off a roof ledge (Will Simpson).
- Tennant would later have a magnificent ginger mane in Good Omens (2019).
- In "School Reunion", when Sarah Jane mentions that the Doctor has regenerated, he says he's done it "half a dozen times" since he last saw her. At the time the episode was broadcast, it was taken to mean that the last time he saw her was when she left the Fourth Doctor in "The Hand of Fear", which people considered odd, given that she met his fifth incarnation in "The Five Doctors". Following the reveal during the show's 50th anniversary, that line takes on a whole new meaning.
- The same episode has the Doctor trying to figure out what to call himself, Mickey, and Rose. "Oh, I hate people who say team." About a decade and three bodies later, the Doctor will still be having trouble trying to figure out what to call his/her companions, with "Team TARDIS" being a prominent fan nickname.
- "Rise of the Cybermen" featured rounded devices inserted in the ears, called "EarPods." Only five years later, Apple began making EarPods. Also, the "handlebar"-like devices on Cybermen's heads look suspiciously like those huge clunky headphones (like Beats by Dr. Dre) that have become popular in recent years. Apple's own AirPods, their wireless take on the EarPods, look very much like the Cybus EarPods.
- Matt Smith carrying the Olympic Torch.
- In "Army of Ghosts", the Doctor and Rose reference the movie "Ghostbusters". Years later, the movie got an all-female reboot. And now, we know that the Thirteenth Doctor is a woman. Did the Universe choose this way to tell us something?
- In one of the Doctor Who New Series Adventures, Forever Autumn, published in 2008, the Doctor tells Martha that Star Wars is actually real (though it's implied that he may have just been messing with her), but "George Lucas was way off the mark with all that stuff in Episode IX." At that point, it was meant to be a gag, since Lucas had stated that there would be only six episodes, and indeed there were at the time. Fast-forward about five years, and it was announced that Disney would be buying the franchise, including the announcement of another three movies. Meaning that perhaps the Doctor was telling the truth after all!note
- In "Smith and Jones", the Doctor, trying to hide his Time Lord biology from the Monster of the Week by pretending to be a panicking human, claims to have worked as a postman. David Tennant would go on to play the Big Bad Wannabe in Postman Pat: The Movie.
- "The Shakespeare Code": After he left Doctor Who, David Tennant went on to play the main character in several highly succesful Shakespeare-productions such as Hamlet in Hamlet and Benedick in Much Ado About Nothing.
- Also in this episode, the Doctor says of Harry Potter "Wait til you read book 7. I cried!". Harry Potter and the Deathly Hallows was published 3 months later, in the epilogue of which two of the main characters have a daughter named Rose. (The Doctor spends a lot of Series 3, including this episode, pining after his lost companion Rose Tyler.)
- In "Gridlock", the Doctor wears a borrowed purple bandana as a breathing mask, remarking that it's "not my color". David Tennant would go on to play Kilgrave in Jessica Jones (2015), whose wardrobe and mind control powers are primarily purple based.
- Andrew Garfield appears in "Daleks in Manhattan" as a homeless boy — he would later portray the best known example of Perpetual Poverty in comic books, Spider-Man. Even better - Spider-Man is also known for his problems with the police — here, the boy is last seen being taken away by pigs.
- The elderly John Smith in "The Family of Blood" sure looks a lot like Peter Capaldi doesn't he?
- Going back and seeing a pre-Amy Pond Karen Gillan and a pre-Twelfth Doctor Peter Capaldi can make "The Fires of Pompeii" either hilarious, confusing, awesome, or possibly all three.
- David Tennant married Georgia Moffett, his co-star in "The Doctor's Daughter", wherein she played... his (clone) daughter. Her real-life father is none other than former Fifth Doctor Peter Davison. And, growing up, was friends with Colin Baker's daughter. The mind boggles.... She's the Doctor's daughter, who was friends with the Doctor's daughter, then played the Doctor's daughter, then married the Doctor, and then had the Doctor's daughter. And now the Doctor is his own father-in-law. David Tennant is the ultimate case of a Promoted Fanboy.
- In "The Poison Sky", Martha, wearing the Doctor's Badass Longcoat, remarks that she feels like a kid in her dad's clothes. This leads Donna to reply that if she's calling the Doctor "dad", she's "definitely getting over him". Fast-forward a few years, and referring to your male crush as dad(dy) has come to mean you're doing the exact opposite of that...
- "Silence in the Library", which introduces the Vashta Nerada, has the character Dr. Moon, played by an actor who appeared in Resident Evil as someone named Shade.
- In "Journey's End", Davros describes the Doctor in a Breaking Speech as "the man who abhors violence, never carrying a gun. But this is the truth, Doctor; you take ordinary people and fashion them into weapons." In Jessica Jones (2015), David Tennant plays Kilgrave, a man who does just that, albeit with no free will on the victim's part.
- This exchange in "Dreamland", in light of David Tennant's voice role in Star Wars: The Clone Wars:The Doctor: There's always a ventilation shaft!
Cassie: Doctor, are you sure there's a way out of here?
The Doctor: Of course there's a way out, there always is! Apart from in Star Wars, of course.
- "The End of Time":
- A few people had fun comparing the Master's Saxon persona to Barack Obama. Then came this episode, in which the Master transforms Obama (and the entire planet) into, well, (clones of) himself!
- In light of the revelation that cross-sex regenerations are possible as well as casting a woman as the Thirteenth Doctor, the Eleventh Doctor's exclamation of "I'm a girl!" becomes a lot funnier. On a similar note, The Master's clones in women's clothes became funnier after the Master himself regenerated into "the Mistress," or "Missy" for short.
- As well as the fact that Thirteen is "...still not ginger!"
- The Doctor spends the two parter terrified of regenerating, unsure of the man he will become and not wanting to die... completely unaware that he's already met his successor (and his Time War incarnation as well) during the Zygon Gambit with Queen Elizabeth. However, it's due to the out-of-sync timelines that Ten doesnt recall these events, and won't until Eleven reaches that point in his timeline. As do the audience.
- In the booklet accompanying the Complete Specials set that concluded David Tennant's run, it begins with a foreword by Tennant where he writes about going back to meet his eight-year-old self and telling him of how an amazing ride it'll be when he plays the Doctor. Eight-year-old Tennant is a little disappointed that the Zygons won't be among the rogues gallery he faces. Flash forward four years later, where Tennant returned for "The Day of the Doctor". Guess who happens to be one of the key antagonists of it?
- Any time Amy made a suggestive joke about River and the Doctor in the early Eleventh Doctor episodes becomes so much funnier when River is revealed as her daughter.
- In "The Eleventh Hour", Rory says, "We were kids! You made me dress up as him!" In "The Girl Who Waited", Future Amy hits on Rory and says "How many times did we play Doctor and Nurse?", suggesting they weren't just kids...
- "Victory of the Daleks" established that the Doctor knew Winston Churchill, and supplementary materials establish that Churchill met, at one time or another, almost all of the Doctors. Two years later, a long-buried interview with Jon Pertwee established that during the war Pertwee was a spy for the British and personally reported to Winston Churchill, even getting some advice from him that inadvertently helped him in his post-war acting career.
- The Doctor's offhand comment in about being on Virginia Woolf's bowling team becomes much more of a howler after you see Matt and Company participate in "The Time of Angels" a celebrity bowling contest, especially since Matt Smith is an absolutely horrible bowler.
- In a Black Comedy sense, Rory tells Alaya in "Cold Blood" that he trusts the Doctor with his life. That proved not to be a great idea.
- In 2013, a new Van Gogh painting entitled "Sunset at Montmajour" was discovered. In the background, there's something that looks a lot like the TARDIS.
- In "The Impossible Astronaut", River makes the infamous quip about how she's "quite the screamer." Fast forward a couple of years, and Alex Kingston started appearing on Arrow as Dinah Drake Lance, who happens to be one of the most famous screamers in comic books, Black Canary.
The "I'm quite the screamer" line was hilarious enough the first time, but in 2014, when Alex Kingston participated in the ALS Ice Bucket Challenge, the second the cold water hit her, she shrieked like a tea kettle. Quite the screamer, indeed.
- In "Day of the Moon", Richard Nixon asks the Doctor if he'll be remembered in the future. The Doctor, wishing to remain coy on the details, simply replies that "they'll never forget about [Nixon]" and "say hello to David Frost for me". Two episodes later, the Doctor has an encounter with a being voiced by Michael Sheen, who played David Frost in Frost/Nixon.
- In "The Almost People", the Doctor's Ganger at first spontaneously adopts the mannerisms of past incarnations as he stabilizes to cope with the Doctor's regenerations, to the point of arguing with himself when he echoes the Tenth Doctor. Among those who witness the outburst is Jimmy, the character played by Marc Bonnar who would later provide the voice(s) of the Eleven in Doom Coalition, an insane Time Lord plagued by a Gallifreyan multiple personality disorder which enables his previous incarnations to remain and persist within his mind as he regenerates.
- Alex Kingston, a.k.a. River Song, made a couple guest appearances on Law & Order: Special Victims Unit. Her character's surname? Pond. Amusing coincidence which became hilarious after River was revealed to be Amy and Rory's daughter, Melody Pond.
- While on some talk show, Catherine Tate looked at a picture of Matt Smith and joked that he was so young he would be the first Doctor who would have to travel the universe with his parents. (contains spoilers) Turns out Amy Pond, his companion, became his mother-in-law, and Rory his father-in-law.
- Due to his marriage to Elizabeth I and her accidental engagement to Henry VIII, this makes her his mother-in-law twice.
- "Night Terrors": A French parody of Doctor Who already had the Doctor dealing badly with a Rubik's Cube.
- The Doctor faking his own death in "The Wedding of River Song" becomes this after the same thing happened on Steven Moffat's and Mark Gatiss' other show, Sherlock.
- David Gyasi had a bit role in "Asylum of the Daleks" as Harvey, the Alaska crew member who meets up with the Doctor and the Ponds on the snowed-in surface of the episode's alien planet. Two years later, Gyasi plays Romilly in Interstellar and gets to walk on the surface of another icy, snowed-in alien planet that has a dark hidden secret.
- Back when Primeval started, some criticisms against the series accused it of stealing Doctor Who's formula. In "Dinosaurs on a Spaceship", the dinosaurs are animated by the team behind Primeval, with the Raptors being lifted straight off the show. The weapons used to bring down the raptors also resembled the electro-muscular disruption guns introduced in the fourth series of the show.
- In "A Town Called Mercy", the Gunslinger's Stat-O-Vision says "TERMINATE" (which is even in the same font as the franchise's logo). Cue two years later when it was announced that Matt Smith would end up being cast in the fifth Terminator film.
- For fans of My Little Pony: Friendship Is Magic, Clara's declaration in "The Snowmen" that the TARDIS is smaller on the outside was probably made 20% funnier by the fact that Derpy said it first in a fanwork.
Doctor Hooves: Can I have the name of your incredible tailor?
- Similarly, the Doctor's offhanded comment in Deep Breath that he spoke "dinosaur" was made so much better by knowing he had already (briefly) traveled with one as a companion.
- An official episode that aired a few months before Series 9, when Moffat was likely ironing out Ashildr's story, includes a character named Doctor Hooves who's a spoof of the Doctor, and has this exchange:
The Dude: Well yeah, man. His name is me.
Doctor Hooves: "Me?" What an unfortunate name.
- "The Bells of Saint John": Kizlet says that no-one loves the cow more than Burger King. Burger King was one of several groups in late 2012 and early 2013 affected by a scandal that revealed a major food supplier's "beef" contained horsemeat. This news broke during the episode's production, presumably too late to alter.
- "The Name of the Doctor" is the 121st episode to feature an X of Y episode name. What's the square root of 121? Eleven.
- In "The Time of the Doctor", Matt Smith wasn't the only one wearing a wig in his scene; Karen Gillan had to, as well, for her filming of Guardians of the Galaxy. She regrets "more than anything" that they didn't think of swapping wigs.
- A meta-example: in 2013, it was announced that Peter Capaldi had been cast as the Twelfth Doctor. Earlier in the year, Capaldi had had a small role in the film adaptation of World War Z. His character was credited as... a WHO Doctor.
- Before Peter Capaldi was announced for the role, Burn Gorman was among the list of rumoured candidates, but was quickly shot down for being a principal cast member of Torchwood. Peter Capaldi, meanwhile, portrayed an important recurring character during the Torchwood: Children of Earth mini-series.
- There was a line in the show Castle: "A doctor who drinks coffee?" However, it sounds like "Doctor Who drinks coffee?" Peter Capaldi as the Doctor seems to enjoy coffee very much.
- This compilation of Peter Capaldi's time on The Thick of It. The words "time travel" and "kidneys" pop up.
- In the Loop had him say "Right, I'm off to deal with the fate of the planet."
- At the beginning of In The Loop, much is made of a character's use of the word "unforeseeable". In "The Zygon Iversion", the Doctor's anti-war speech has him saying "Well here's the unforeseeable..."
- Before Peter Capaldi was cast, IGN ran a list of actors they would like to portray the next regeneration of the Doctor, even running a poll so fans could pick their personal favourite candidate out of the list. One of them was David Tennant (who also happened to win the poll), with IGN reasoning that in time the Doctor may need to revisit past forms he's regenerated into and been used to in the past. Based off the appearance of Tom Baker in "The Day of the Doctor" and how he'll be able to reuse some "personal favourite" faces, apparently sometime long into his future he does just that.
- The Affectionate Parody Inspector Spacetime is chock-full of similar-but-not-exact references to this show, such as the classic companions Irma and Bart, the maths and English teachers. Clearly designed as a reference to first companions Ian and Barbara, the show's science and history teachers, but come 2014 and thanks to Danny Pink and Clara Oswald, this show has maths and English teachers on board the TARDIS, too.
- "Kill the Moon". Turns out declaring war on the moon because of its tactical advantage may not have been as silly as it seemed. Strax was right this whole time!
- "Death in Heaven" aired shortly after the release of Interstellar, which features a similar treatment of love as a powerful physical force.
- Arthur Darvill plays DC Comics' time-travelling hero Rip Hunter (who actually predates Doctor Who by a few years) in Legends of Tomorrow.
- A meta-example: the Abandon Shipping that occurred for Doctor/Clara (Whouffle) when it was initially announced that Peter Capaldi (a much older actor) would be replacing Matt Smith as the Doctor. This was spurred further by a false rumor (that both Capaldi and Moffat have since denied) that Capaldi had adamantly insisted that there be no flirting or Ship Tease between his Doctor and Clara. Then Series 8 came out...and it was loaded with Ship Tease between Capaldi's Doctor and Clara. Many of the Doctor/Clara Shippers who'd initially abandoned ship eagerly came back aboard along with new Shippers who'd never shipped 11/Clara but now shipped 12/Clara (Whouffaldi). By the end of Series 8, 12/Clara was right up there with 10/Rose, 11/River, and Doctor/TARDIS as far as canonicity went and Series 9 reconfirmed that over and over on the way to its Bittersweet Ending. For bonus points, the Christmas Episode that followed Series 9 was a poignant Romantic Comedy that established 12/River as a canon pairing, meaning the Doctor who initially inspired Abandon Shipping has two canon human(oid) lovers, making him as bittersweetly lucky in love as any incarnation's ever been.
- After revealing Matt Smith's role in Terminator Genisys as Skynet, it puts a hilarious new spin on his performance in "Nightmare in Silver".
- When Romana regenerated in the Classic Series, Four protested very loudly that it just wasn't right to take the form of someone they had seen during a previous adventure, but Romana wasn't at all bothered. A few regenerations later, The Doctor pulled the same stunt she did, taking the appearance of a fellow he ran across in the past (then did it again as Capaldi). One wonders what Romana would say to him now.
- When the Doctor visits the last planet in the universe in "Listen", he comments on a marooned time traveller, "The last man standing in the universe. I always thought that would be me." Fast forward to "Hell Bent" and we reach the very last little fragment of the universe, only five minutes to go, and what do you know, the last one standing in the universe is...Me.
- Anthony Ainley playing The Master hits this, considering that one of his previous works appeared on Mystery Science Theater 3000, which famously riffed a movie with a different Master. Doubly so since The Five Doctors would eventually get subjected to Rifftrax.
- The music video for Billie Piper's "Because We Want To" seems to be almost LOADED with references to the show, especially from the revival onward. One would think it was deliberate... except for the fact the video was made in 1998, while the revival started airing in 2005. Seeing her zap and melt a Dalek-shaped trash can alone is bizarre, let alone a figure resembling an Auton, though the night club bouncer being a rhino man that resembles a Judoon is even weirder.
- Shortly after David Bradley appeared as the First Doctor, and the very same day it was announced that the Thirteenth Doctor would be a woman, he appeared as a young woman disguised as an old man in the Season 7 premiere of Game of Thrones.
- A few episodes later Maisie Williams is quite disturbed that her brother seems to have lost all his humanity due to having multiple lifetimes of memories in his head.
- Four years before being cast as the Doctor, Jodie Whittaker was photobombed by a Dalek at the BAFTAs.
- There is something really funny about Broadchurch having so many Doctor Who actors in it after the announcement the series creator, Chris Chibnall, would take over from Moffat as the new showrunner of Doctor Who.
- Speaking of Broadchurch here's a rather roundabout one. Tim Latimer from "Human Nature"/"The Family of Blood" shares a surname with Broadchurch character Beth Latimer, who was played by then-future Thirteenth Doctor Jodie Whittaker.
- All the people who objected to Ten's ultimate treatment of Donna may find themselves Rooting for the Empire in Ducktales 2017, where Catherine Tate plays Magica De Spell to David Tennant's Scrooge McDuck.
- At the time, David Tennant affecting an English accent for the role didn't seem that odd as there had never been a Doctor with such a strong accent as his natural Scottish burr. But with Peter Capaldi and Jodie Whittaker both getting to use their natural accents in the role, plus Christopher Eccelston before him (while Matt Smith's is neutral enough for this to not be an issue), poor David comes off as a bit of a Memetic Loser.
- What, Sylvester McCoy doesn't have a strong accent? Rrrrrreally?
- After all the fuss over Ten's tumultuous romance with Queen Elizabeth I, it was Matt Smith (who actually was there with him once we finally got to see the romance and had some choice words about it) who got to marry the next queen of that name.
- "Nightmare in Silver"'s villain being called Mr. Clever can bring the Mr. Men-themed Doctor Who stories to mind.
- When Donna first meets the Doctor, she assumes he's from Mars. Any fan of the Patrick Troughton and Jon Pertwee eras - or anyone who saw "Cold War" several years later - and knows what Martians actually look like has to find this kind of hilarious.
- Amy's line in "The Time of Angels" ("Oooh, Doctor. You sonicked her) becomes so much more hilarious (and just a bit squicky) when one discovers that River is Amy's daughter.
- Peter Capaldi's speech after winning the 1995 Oscar for Live Action Short Film is made funnier when you realise it's immediately followed by Daffy Duck dressed with a bow-tie and fez.
- The announcement that the Thirteenth Doctor's first season would air on Sundays, a change to the show's long-standing tradition of airing on Saturdays, brings a new hilarity to some comments made by the Tenth and Eleventh Doctors. In "Silence in the Library", Ten comments that he never lands on Sundays because he finds them "boring", and at the beginning of "The Stolen Earth" is pleased to find out that it's Saturday. In "The Impossible Astronaut", Eleven describes Saturdays as "big temporal tipping points".
- In "Silence in the Library", Ten tells archaeologist Dr River Song that as a time traveller, he "points and laughs at archaeologists". In "A Good Man Goes to War", Eleven's reaction to seeing Amy's baby, who would grow up to become River Song, is to point and laugh at her. Mostly because she's an adorable baby, but still.
- "The Family of Blood" has the Doctor briefly wear a tweed jacket and bow tie after shedding the John Smith persona. However, he very swiftly changes back into his normal clothes. It seems like he's not too fond of that ensemble. Just give it a few years...
- In "Let's Kill Hitler", Amy asks, "Who steals a bus?" Several years later, Who will steal a bus.
- David Tennant finally did get to be ginger in Good Omens (2019).
- 45 years after "The Brain of Morbius The Doctor encounters a very different Morbius, whose creation actually predates the episode.
- In 2001, a Big Finish audio adventure called "Colditz" featured an up-and-coming actor and Ascended Fanboy who told Doctor Who Magazine that being in a Doctor Who production was a lifelong dream come true, even if it was just portraying a Monster of the Week. That actor's name? David Tennant.
- The novelization of "The Dalek Invasion of Earth" accidentally misnames David Campbell as David Cameron. Awkward.
- In 1985, Lenny Henry played the Doctor in a skit for his show The Lenny Henry Show, which becomes this as Henry would later appear in the show 35 years later and given that he was the first black actor to play the Doctor, albeit in a parody, Jo Martin would become the first black actor to officially play the Time Lord as she would play Ruth three episodes later.
Hilarious In Hindsight / Doctor Who