* HeyItsThatVoice:
** Creator/TomKenny is Iron Man, Captain America, and MODOK.
** Creator/CharlieAdler is Dr. Doom.
** Creator/SteveBlum is once again ComicBook/Wolverine (as in ''VideoGame/XMenLegends'', ''VideoGame/MarvelUltimateAlliance'', ''WesternAnimation/WolverineAndTheXMen'', ''VideoGame/SpiderManWebOfShadows'', ''Anime/XMen'' anime, ''WesternAnimation/AvengersEarthsMightiestHeroes'', ''WesternAnimation/{{Ultimate Spider-Man}}''...) and is also Abomination.
** [[Series/BuffyTheVampireSlayer Dawn]] is Valkyrie.
** JamesMarsters is Mr. Fantastic.
** [[Series/SisterSister Tamara]] is Misty Knight.
** Creator/MarkHamill is Red Skull.
** [[Series/{{House}} Dr. Allison Cameron]] is Wasp.
** Shawn Ashmore is Iceman [[Film/{{X-Men}} again]].
** Dave Boat is Thor [[UltimateAvengers again]].
** A.J. Buckley and Creator/JimWard are [[WesternAnimation/WolverineAndTheXMen once again]] Toad and Professor Xavier.
** Creator/GeorgeTakei is Galactus.
** Wayne Knight is Egghead.
** [[Series/HerculesTheLegendaryJourneys Hercules]] is Ka-zar.
** Creator/RobertEnglund is Dormammu.
** RayStevenson reprises his role as the Punisher from ''The Punisher: War Zone''.
** Creator/CreeSummer is Storm.
** Creator/KevinMichaelRichardson is Nick Fury.
** [[Series/TheSarahConnorChronicles Sarah Conner]] is Black Widow and Mystique.
** [[WesternAnimation/{{TMNT}} Michelangelo]] is the Silver Surfer.
** Creator/MauriceLaMarche is Magneto.
** Creator/ScottMenville is Quicksilver.
** Music/GreyDeLisle is Ms. Marvel and Enchantress.
** Tricia Helfer ([[WesternAnimation/TheSpectacularSpiderMan Black Cat]]) is Sif.
** LevarBurton is War Machine.
--> "Stop talking like you're from ReadingRainbow!"
** Creator/TravisWillingham is the Hulk, Zeus, and Human Torch.
** Creator/LauraBailey is Firestar.
** Creator/TaraStrong is The Invisible Woman and Scarlet Witch.
** Creator/AdrianPasdar is Hawkeye.
** [[Series/{{Heroes}} Matt Parkman]] is Hank Pym.
** Creator/CarlosAlazraqui is Cyclops.
** HyndenWalch is Jean Grey.
*** Season 2 gives us Ty Burrell as Captain Mar-vell, Creator/KateeSackhoff as She-Hulk, Creator/AdamWest as Knighthawk, Jane Lynch as Kang's daughter Nebula, and JimParsons as Nightmare, as well as Creator/JonathanFrakes as High Evolutionary, MichaelDorn as Ronan the Accuser, and Creator/JohnBarrowman as Stranger.
** Creator/JimCummings is Thanos in Season 2.
** Creator/DaveWittenberg is Miek and Korg.
** Of course [[Creator/StanLee The Mayor]] created Marvel.
** Creator/JessHarnell is Odin, Hercules, Heimdall, Crimson Dynamo, and [[WesternAnimation/FantasticFour reprises the role of]] Impossible Man.
** Reptil is [[VideoGame/KidIcarusUprising Pit]] and [[VideoGame/GodOfWar Young!Kratos]].
** Susan Eisenberg ([[WesternAnimation/JusticeLeague Wonder Woman]]) is Power Princess.
** Creator/LenaHeadey is ComicBook/BlackWidow.
** Creator/PatFraley is BetaRayBill.
** Creator/JoshKeaton is Moon Boy.
* WrittenByCastMember: Creator/TomKenny co-wrote "Missing: Impossible!"
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