History MythologyGag / InfinityCrisis

* In ''Rampage of the Rani'', the titular antagonist directly mentions the destruction of Gallifrey by the Spy Master and the Doctor's past as the Timeless Child.

** The Earth-51 version of Billy Batson is named "Captain Thunder" by the public. Captain Thunder was Billy's alias in the ''ComicBook/{{Flashpoint}}'' timeline.

** In Chapter 11, Mr. Mxyzptlk briefly shows multiple of his appearances and, when asking Superman the danger of him getting too serious, mentions the [[Recap/JusticeLeagueS2E11And12ABetterWorld Justice Lords]] version of Clark. He also mentions his trip to the world of ''Franchise/{{Injustice}}'', saying that he had to trick Regime Superman into thinking he killed Mxy, just so he could go away.

** In Chapter 1, the Thirteenth Doctor reunites with Missy, who proceeds to mock her sense of fashion. The Doctor retorts that, at least, she wasn't a flashy-glow skeleton, referencing the botched resurrection of the Saxon Master in "The End of Time" and one moment in the same episode in which he shows to a bunch of homeless people his skeleton, who was glowing.

** In Chapter 11, Mr. Mxyzptlk briefly shows multiple of his appearances and, when asking Superman the danger of him getting too serious, mentions the Justice Lords version of Clark. He also mentions his trip to the world of ''Franchise/{{Injustice}}'', saying that he had to trick Regime Superman into thinking he killed Mxy, just so he could go away.

* ''Infinity Crisis: Glimpses'' features a chapter set on Earth-78227, a world loosely based on the MCU save for the fact that Betty Brant is Spider-Girl, an event that only happened in a one-off storyline in an early issue of ''ComicBook/WhatIf''. Also, her costume is based on the Stark Suit, but orange and purple instead of red and blue, which nods to early concept sketches of Spider-Man by Steve Ditko.

** In the same chapter, Roy Harper insists that he was Green Arrow's partner, the same as the sole appearance of the [[WesternAnimation/DCAnimatedUniverse DCAU]] version of Speedy.

** The "Wakey Wakey" trailer sees D.E.L.I.L.A.H. making a bunch of those: the creation of the Justice Society[[note]]which also counts as a ContinuityNod to the post-Vast Oink Earth-51[[/note]], the first album of Canadian post-rock band Music/GodspeedYouBlackEmperor being ''All Lights Fucked on the Hairy Amp Drooling'', the Earth-199999 Doctor Octopus' tentacles being made with Stark Enterprises technology[[note]]Which references an unused plot point coming from an early draft of the script of ''Film/IronMan1''.[[/note]], the events of ''Fanfic/SquidwardsSuicide'' and the Prime version of Squidward reminiscing and being troubled by his encounter with his counterpart from that fanfic (which happened in the first version of "Spongebob in Randomland"). There's even a double one: the robot mentions an adventure of the Twelfth Doctor during which he and the Monk, who reversed the Russian Revolution after having made Grigori Rasputin listen to Boney M's "Rasputin"[[note]]Which was a once-planned but ultimately scrapped adventure imagined during Twelve's era.[[/note]] and, after that, the Spy Master is shown looking at a video recording of the incident and taking notes, a reference and CallForward to his own stint as Rasputin in "The Power of the Doctor".

** Missy's reintroduction & memories she has in mind upon being resurrected are basically a fast recap of the events of "The Doctor Falls".
** In the first Intermission, Pighead is shown wearing an outfit made of various Doctors' pieces of clothing, bringing in mind the Spy Master doing exactly that after his takeover of the Doctor's body in "The Power of the Doctor".

** The segment of the Second Doctor shows him and his companions fighting multiple generations and iterations of the Cybermen, including the Mondasian versions, the Cybus ones and the [=CyberMasters=].

* In ''A New Ally'', the War Master uses the fake name of "Harold Saxon", bringing in mind his successor. Though, in following installments, this was retconned and changed to "Rudolf Limmer".
* In ''Daughters of the Morningstars'', while the dimensionally-displaced Rory Morningstar explains to the Staff and residents of the Hazbin Hotel what Hell looks like in her world and her parents' own attempts to redeem sinners, Charlie brings up [[spoiler:Sir Pentious' death and ascension to Heaven]], remarking that Rory's claims are proving this event wasn't just a one-time occurrence.

* In ''Rebirth of Friendship'', while looking at the outside of the Hazbin Hotel, [[spoiler:Future!]]Pighead remarks that the place already gained the makeover Alastor gave it in the pilot of the show. There's also multiple mentions of Charlie's interview with Katie Killjoy and Angel Dust having a part of responsability for its failure.
* ''The Nth Whatsit'' shows Pighead using her powers to trigger regenerations in everyone. The new incarnation of Barry Allen & past incarnation of Marianne Peters (two of her test subjects) are noted to look like Ryan Kwanten[[note]]One of the actors originally considered to play Barry Allen.[[/note]] and Chris D'Elia[[note]]Peters' original actor before being dropped and replaced by Tig Notaro.[[/note]].
* In ''The Exiled Doctor'', which is itself loosely based on the Big Finish audio "Exile", the alternate Third Doctor claims that she still has legs as her first line. This is also the first line the Eleventh Doctor said upon being born. She also complains that she's still not ginger, something both Ten & Eleven complained about in canon.
* In ''The Watcher's Choice'', Uatu remarks that the designated numbers of realities are always in flux and uses the examples of the MCU and [[spoiler:the Earth without any heroes that serves as the true homeworld of the Monks]], naming several of their numbers. Later, [[spoiler:the latter Earth is revealed to be Earth-1218, which is also the number given to [[RealLife our world]] inside the Marvel Multiverse.]]
* In ''Some Random Snippets'', the alternate Ninth Doctor crashing on Equestria and regenerating into a new form because of said crash brings to mind the Eighth Doctor dying after crashing on Karn and the Sisterhood of Karn reviving Eight in order for him to regenerate as the War Doctor in "The Night of the Doctor".

* In ''Infinity Crisis: The Inhumans'', Ozel is revealed to be a speedster. This is a nod to her meeting Quicksilver in her sole comic appearance.

* ''Infinity Crisis: Glimpses'' features a chapter set on Earth-78227, a world loosely based on the MCU save for the fact that Betty Brant is Spider-Girl, an event that only happened in a one-off storyline in an early issue of ''ComicBook/WhatIf''.

* In ''Infinity Crisis Aftermath: Tete-a-Tete'', Ravonna is introduced wearing a gold and green suit of armor. This is an intentional nod to the armor she wore as [[http://www.marvunapp.com/Appendix2/terminatrixrav.htm Terminatrix]], which debuted in ''Avengers Annual'' #21 (1992).
* In ''Infinity Crisis Aftermath: A Flashy Debut'', Killraven is gifted a couple of weapons. One is a [[Franchise/StarWars lightsaber]], and the other is an energy shield once used by Captain America. This is a nod to ''[[ComicBook/AvengersForever Avengers Forever]]''. A version of Killraven appeared in that maxiseries wielding one of Captain America's energy shields.

** The introduction of [[VideoGame/HenryStickminSeries the Toppat Clan]] makes mentions of a civil war, years ago, that torn the Clan from the inside, clearly referencing the "Toppat Civil War" timeline in ''Completing the Mission''.