Marvel/DC: Multiverse in Danger

Marvel/DC: Multiverse in Danger is an American animated television mini-series based on the characters from Marvel and DC Comics.

Avengers

 * Steve Rogers/Captain America (Brian Bloom)
 * Tony Stark/Iron Man (Eric Loomis)
 * Thor (Dave Boat)
 * Dr. Bruce Banner/Hulk (Fred Tatasciore)
 * Dr. Hank Pym/Ant-Man/Giant-Man (Wally Wingert)
 * Janet van Dyne/Wasp (Colleen Villard)
 * Clint Barton/Hawkeye (Chris Cox)
 * Natasha Ramonoff/Black Widow (Nika Futterman)
 * Sam Wilson/Falcon (Bumper Robinson)
 * T'Challa/Black Panther (James C. Mathis III)
 * Carol Danvers/Captain Marvel (Grey Griffin)
 * Wanda Maximoff/Scarlet Witch (Kate Higgins)
 * Vision (Peter Jessop)

X-Men

 * Scott Summers/Cyclops
 * Jean Grey
 * Bobby Drake/Iceman
 * Dr. Hank McCoy/Beast
 * Warren Worthington III/Angel
 * James "Logan" Howlett/Wolverine (Steven Blum)
 * Kitty Pryde/Shadowcat
 * Kurt Wagner/Nightcrawler
 * Piotr Rasputin/Colossus
 * Anna Marie/Rogue
 * Remy LeBeau/Gambit (Phil LaMarr)
 * Pietro Maximoff/Quicksilver

Fantastic Four

 * Reed Richards/Mr. Fantastic
 * Sue Storm/Invisible Woman
 * Ben Grimm/Thing
 * Johnny Storm/Human Torch

Guardians of the Galaxy

 * Peter Quill/Star-Lord
 * Gamora
 * Drax
 * Rocket Raccoon
 * Groot
 * Mantis
 * Adam Warlock

New Warriors

 * Dwayne Taylor/Night Thrasher
 * Namorita
 * Robbie Baldwin/Speedball
 * Angelica "Angel" Jones/Firestar
 * Richard Rider/Nova
 * Vance Astrovik/Justice

S.H.I.E.L.D.

 * Nick Fury (Eric John Bentley)
 * Phil Coulson
 * Maria Hill
 * Daisy Johnson/Quake
 * Barbara "Bobbi" Morse/Mockingbird

Other Heroes

 * Peter Parker/Spider-Man (Josh Keaton)
 * Matt Murdock/Daredevil (Roger Craig Smith)
 * Luke Cage
 * Danny Rand/Iron Fist
 * Jessica Jones/Jewel
 * Stephen Strange/Doctor Strange (Liam O'Brien)
 * Kamala Khan/Ms. Marvel
 * Doreen Green/Squirrel Girl
 * Wade Wilson/Deadpool (Nolan North)
 * Col. James "Rhodey" Rhodes/War Machine (Bumper Robinson)

Masters of Evil

 * Baron Helmet Zemo
 * Obadiah Stane/Iron Monger
 * Amora the Enchantress
 * Skurge the Executioner
 * Emil Blonsky/Abomination
 * David Cannon/Whirlwind
 * Barney Barton/Trick Shot
 * Ulysses Klaw
 * Arthur Parks/Living Laser
 * Bruno Hogan/Melter

Brotherhood of Mutants

 * Erik Lehnsherr/Magneto (Tom Kane)
 * Victor Creed/Sabretooth (Peter Lurie)
 * Raven Darkholme/Mystique
 * Mortimer Toynbee/Toad
 * St. John Allerdyce/Pyro
 * Dominikos Petrakis/Avalanche
 * Frederick "Fred" Dukes/Blob (Stephen Stanton)

Frightful Four

 * Bentley Whitman/Wizard
 * Peter Petruski/Trapster
 * Thundra
 * Dragon Man (N/A)

Serpent Society

 * Klaus Voorhees/King Cobra
 * Blanche Sitznski/Anaconda
 * Quincy McIver/Bushmaster
 * Burchell Clemens/Cottonmouth
 * Roland Burroughs/Death Adder
 * Gustav Krueger/Rattler
 * Rachel Leighton/Diamondback
 * Frank Payne/Constrictor
 * Ariana Siddiqi/Black Racer
 * Seth Voelker/Sidewinder
 * Beatrix Keener/Coachwhip

Wrecking Crew

 * Dirk Grathwaite/Wrecker (Dave Wittenberg)
 * Henry Camp/Bulldozer
 * Brian Philip Calusky/Piledriver
 * Eliot Franklin/Thunderball (Gary Anthony Williams)

Hydra

 * Johann Schmidt/Red Skull (Steven Blum)
 * Baron Wolfgang von Strucker
 * Arnim Zola
 * Ophelia Sarkissian/Madame Hydra
 * Johann Fennhoff/Dr. Faustus
 * Brock Rumlow/Crossbones
 * Sinthea Schmidt/Sin

A.I.M.

 * George Tarleton/M.O.D.O.K. (Wally Wingert)
 * Andrew Forson/Scientist Supreme

Other Villains

 * Loki Faufeyson (Crispin Freeman)
 * Tony Masters/Taskmaster
 * Norman Osborn/Green Goblin
 * Wilson Fisk/Kingpin
 * Dr. Otto Octavius/Dr. Octopus (Peter MacNicol)
 * Eddie Brock/Venom (Benjamin Diskin)
 * Mandarin
 * Ultimo (N/A)
 * Justin Hammer
 * Paul Duval/Grey Gargoyle (Troy Baker)

Justice League

 * Kal-El/Clark Kent/Superman (George Newbean)
 * Bruce Wayne/Batman (Kevin Conroy)
 * Princess Diana/Diana Prince/Wonder Woman (Susan Eisenberg)
 * Hal Jordan/Green Lantern
 * Barry Allen/Flash (Michael Rosenbaum)
 * Orin/Arthur Curry/Aquaman (Phil LaMarr)
 * J'onn J'onzz/John Jones/Martian Manhunter (Carl Lumbry)
 * Oliver Queen/Green Arrow (Alan Tudky)
 * Dinah Lance/Black Canary (Vanessa Marshall)
 * Katar Hol/Carter Hall/Hawkman
 * Shayera Hol/Shiera Hall/Hawkgirl
 * Ray Plamer/Atom
 * Mari McCabe/Vixen

Justice Society

 * Jay Garrick/Flash (John Wesley Shipp)
 * Alan Scott/Green Lantern
 * Ted Grant/Wildcat
 * Kent Nelson/Dr. Fate

Teen Titans

 * Dick Grayson/Robin
 * Roy Harper/Speedy
 * Donna Troy/Wonder Girl
 * Garth/Aqualad
 * Kara Zor-El/Kara Danvers/Supergirl
 * Koriand'r/Starfire (Hynden Walch)
 * Garfield Logan/Beast Boy (Greg Cipes)
 * Victor Stone/Cyborg (Khary Payton)
 * Rachel Roth/Raven (Tara Strong)

Shazam Family

 * Billy Batson/Shazam (Sam Lavagnino & Zachary Levi)
 * Freddy Freeman/Shazam, Jr.
 * Mary Batson/Mary Marvel

Injustice League

 * Lex Luthor (Clancy Brown)
 * Joker (Mark Hamill)
 * Harleen Quinzel/Harley Quinn (Tara Strong)
 * Barbara Ann Minerva/Cheetah (Erica Luttrell)
 * Thaal Sinestro (Troy Baker)
 * Gorilla Grodd (David Solobov)
 * David Hyde/Black Manta (Khary Payton)
 * Ma'alefa'ak J'onzz/Malefic
 * Malcolm Merlyn/Dark Archer
 * Carl Sands/Shadow Thief
 * David Clinton/Chronos

Rogues

 * Leonard Snart/Captain Cold (C. Thomas Howell)
 * Mick Rory/Heat Wave
 * Lisa Snart/Golden Glider
 * George Harkness/Captain Boomerang
 * Sam Scudder/Mirror Master
 * James Jesse/Trickster
 * Roscoe Dillon/Top
 * Mark Mardon/Weather Wizard

Other Villains

 * Slade Wilson/Deathstroke (Ron Perlman)
 * Doris Zeul/Giganta
 * Rudy Jones/Parasite
 * Dr. Jonathan Crane/Scarecrow (Robert Englund)
 * Eobard Thawne/Reverse-Flash
 * Despero
 * Starro (Dee Bradley Baker)
 * Orm Marius/Ocean Master
 * Nanaue/King Shark (Fred Tatasciore)
 * Pamela Isley/Poison Ivy (Tasia Valenza)