Keanu Reeves Bruce Wayne / Batman (voice)
John Krasinski Clark Kent / Superman (voice)
Lena Headey Lara (voice)
Dwayne Johnson Krypto the Superdog / Anubis / Black Adam (voice), Producer
Olivia Wilde Lois Lane (voice)
Kevin Hart Ace the Bat-Hound (voice)
Diego Luna Chip (voice)
Natasha Lyonne Merton (voice)
Taylor Swift Songs
Keith David Dog-El (voice)
Marc Maron Lex Luthor (voice)
Alfred Molina Jor-El (voice)
Maya Erskine Mercy Graves (voice)
Dan Fogler Carl / Pilot / Racer (voice)
Jemaine Clement Arthur Curry / Aquaman (voice)
Kate McKinnon Lulu (voice)
Bob Kane Characters
Ben Schwartz Mark / Fire Guinea Pig (voice)
Jameela Jamil Diana Prince / Wonder Woman (voice)
Daveed Diggs Victor Stone / Cyborg (voice)
Yvette Nicole Brown Patty (voice)
Busy Philipps Foofy Dog (voice)
Lou Romano Visual Development
Joe Shuster Characters
Vanessa Bayer PB (voice)
John Early Barry Allen / The Flash (voice)
Michelle Morgan Mech Suit (voice)
John Whittington Writer
Thomas Middleditch Keith / Ice Guinea Pig (voice)
Jared Stern Writer, Director, Producer, Bathtub Guy / JLA Hotline (voice)
Bill Finger Characters
Nicholas Stoller Executive Producer
Dascha Polanco Jessica Cruz / Green Lantern (voice)
John Puglisi Story Artist
Jerry Siegel Characters
William Moulton Marston Characters
Richard Arnold Waffles (Uk Dub)
David Pressman Corgi (voice)
Dany Garcia Producer
Glenn Ficarra Executive Producer
John Requa Executive Producer
Mark Walton Story Artist
Kevin Harkey Story Artist
Hiram Garcia Producer
Darrin Mann Foley Mixer
Season Kent Music Supervisor
Steve Jablonsky Original Music Composer
Régis Schuller Layout Supervisor
Christopher Moriana Foley Artist
Nikolas Ilic Character Designer
Kenji Ono Story Artist
Ruth Lambert Casting
Jon Warne Production Coordinator
Bill R. Dean Sound Designer, Supervising Sound Editor
Bruce Tanis Foley Editor
Kristen Anderson Art Direction
Ovi Nedelcu Character Designer
Alyson Dee Moore Foley Artist
Garret Elkins Additional Editor
Joe Oh Story Artist
Cinzia Angelini Additional Storyboarding
Ricardo F. Delgado Visual Development
Max Martin Songs
Allison Abbate Executive Producer
Patricia Hicks Producer
Craig Kellman Character Designer
David Burgess Animation Supervisor
Eric Elrod Additional Storyboarding
Sharon Colman Additional Storyboarding
Sam Levine Waffles / Robot Guards (voice), Co-Director
Mayumi Nose Lead Character Designer
Feargal Stewart CG Supervisor