History Trivia / Invincible2021

* FanNickname: "Discount Batman", "Discount Wonder Woman", and so on for the Guardians of the Globe, since they're obvious expies of Franchise/DCComics' ComicBook/JusticeLeague.

** Creator/RossMarquand is The Immortal, Aquarius, Rudy, Kursk, and Bi-Plane.
** Creator/GreyGriffin is Monster Girl (in human form), Shrinking Rae, Olga, and Eve's mother.
** Creator/KevinMichaelRichardson is the Mauler Twins, Monster Girl's monster form, and the Flaxan Leader.
** Creator/ChrisDiamantopoulos is Donald Ferguson, Doc Seismic and Isotope.
** Creator/FredTatasciore is Kill Cannon and Eve's father.
** Creator/NicoleByer is Titan's wife Vanessa and daughter Fiona.

* FakeGuestStar: Only Creator/StevenYeun, Creator/SandraOh, and Creator/JKSimmons are credited as main cast members. While those three ''are'' the largest, most central roles, there's still other cast members who have are in every episode or almost every episode who like Creator/WaltonGoggins, Creator/GillianJacobs, Creator/ZazieBeetz, and Creator/AndrewRannells who get relegated to secondary billing later in the credits despite their prominent roles.

* PlayingAgainstType: While Creator/EzraMiller is best known for playing AntiVillain [[Film/FantasticBeasts Credence Barebone]] and good guy [[Franchise/DCExtendedUniverse Barry Allen]], their character in the show, D.A. Sinclair is a {{Jerkass}} WellIntentionedExtremist.

* ProductionPosse: Many actors from the television adaptation of Creator/RobertKirkman's other notable series, ''Series/TheWalkingDead'' lend their voices to the show. In addition to Creator/StevenYeun as Mark, the Guardians of the Globe are all played by ''Walking Dead'' alumni: Creator/SonequaMartinGreen, Creator/LaurenCohan, Creator/RossMarquand, Creator/ChadLColeman, Creator/LennieJames, and Creator/MichaelCudlitz. Creator/KharyPayton is also in the cast as Black Samson, though his ''Walking Dead'' character debuted after Yeun left the show.

* TheNthDoctor: As a result of [[spoiler:copying his mind to his new body in episode 7]], Robot went from being voiced by Creator/ZacharyQuinto to now voiced by Creator/RossMarquand.

* TheCameo:
** Creator/SeanPatrickThomas as Steve's coworker in the series opening scene.
** Creator/ZehraFazal as a young wife and female astronaut in Episode 4.
** Creator/GaryAnthonyWilliams as a newscaster, umpire, and scientist in Episode 8.
* CastingGag: [[spoiler: This isn't the first time that a [[Series/TheWalkingDead character with red motifs played by Michael Cudlitz had his head crushed.]] In fact, all of the Glenn-era ''The Walking Dead''-voiced characters die by their heads getting crushed, except for Creator/StevenYeun's.]]
** This also wasn't the first time a character voiced by ''Creator/AndrewRannells'', was captured by a college MadScientist who [[WesternAnimation/StreetSharks turns people into in-human minions]]. William however was a little more luckier than Bobby.
** Principal “Winslow” stops Mark to talk about his attendance and grades slipping in Episode 5. The voice actor is Creator/ReginaldVelJohnson.

* BeamMeUpScotty: Omni-Man does not say "Think, Mark, Think!" during the iconic scene in Episode 8. He only says "Think, Mark!" without the second 'think'.

* FakeGuestStar: Only Creator/StevenYeun, Creator/SandraOh, and Creator/JKSimmons are credited as main cast members. While those three ''are'' the largest, most central roles, there's still other cast members who have are in every episode or almost every episode who like Creator/WaltonGoggins, Creator/GillianJacobs, Creator/ZazieBeetz, and Creator/AndrewRannells who get relegated to secondary billing later in the credits.

* CreatorPreferredAdaptation: Robert Kirkman had the show deviate from the comic in a few places, owing it to [[OldShame having grown more as a writer since then]]. For example, he's previously stated he should've [[spoiler:killed the Guardians sooner than Issue #7]], which is why this is bumped up to the end of the first episode instead.

* PlayingAgainstType: While Creator/EzraMiller is best known for playing AntiVillain [[Film/FantasticBeasts Credence Barebone]] and good guy [[Franchise/DCExtendedUniverse Barry Allen]], his character in the show, D.A. Sinclair is a {{Jerkass}} WellIntentionedExtremist.

* TwoVoicesOneCharacter: [[Creator/GreyDeLisle Grey Griffin]] voices Monster Girl as a human, while Creator/KevinMichaelRichardson voices her in monster form.

** In contrast to both actors best known for voicing villains in comic book animated shows, but in this comic book animated show, Creator/MarkHamill and Creator/ClancyBrown voice good guys as Hamill's character Art is a CoolOldGuy, while Brown's character Damien Darkblood is a DarkIsNotEvil demonic detective.

** In contrast to both actors best known for voicing villains in comic book animated shows, but in this comic book animated show, Creator/MarkHamill and Creator/ClancyBrowm voice good guys as Hamill's character Art is a CoolOldGuy, while Brown's character Damien Darkblood is a DarkIsNotEvil demonic detective.

** In contrast to both actors best known for voicing villains in comic book animated shows, Creator/MarkHamill's character Art is a CoolOldGuy, while Creator/ClancyBrown's character Damien Darkblood is a DarkIsNotEvil demonic detective.

* QueerCharacterQueerActor: Creator/AndrewRannells and Creator/JonathanGroff are gay like their characters William and Rick.

* RelationshipVoiceActor: [[Creator/JKSimmons Tenzin]] is a mentor to [[Creator/StevenYeun the Avatar]] [[WesternAnimation/TheLegendOfKorra again]]. [[{{Reincarnation}} Technically.]]

** Creator/KevinMichaelRichardson is the Mauler Twins and Monster Girl's monster form.

** Creator/NicoleByer voices Titan's wife Vanessa and daughter Fiona.

** Creator/ChrisDiamantopoulos is Donald Ferguson and Doc Seismic.

** Many of the voice actors also worked on WesternAnimation/GeneratorRex like Creator/JKSimmons and Creator/MarkHamill.

** Creator/RossMarquand is The Immortal, Aquarius and Robot/Rudy.
** Creator/GreyGriffin is Monster Girl (in human form), Shrinking Rae, and Olga.

** There is so many actors did worked on [[WesternAnimation/GeneratorRex]] like j.k simmons and mark hamill and so many others

** Immortal and Aquarius are both voiced by Ross Marquand.
** Grey Griffin voices both Monster Girl (when she's not in monster form) and Shrinking Rae.

* FakeNationality: Sort of. Debbie Grayson is played by Creator/SandraOh, an actress who is of Korean descent like her charactet but she is Canadian as opposed to American.