Dwayne Johnson character Krypto the Superdog (voice)
Kevin Hart character Ace the Bat-Hound (voice)
John Krasinski character Clark Kent / Superman (voice)
Keanu Reeves character Bruce Wayne / Batman (voice)
Kate McKinnon character Lulu (voice)
Vanessa Bayer character PB (voice)
Natasha Lyonne character Merton (voice)
Diego Luna character Chip (voice)
Jameela Jamil character Diana Prince / Wonder Woman (voice)
Marc Maron character Lex Luthor (voice)
Dascha Polanco character Jessica Cruz / Green Lantern (voice)
Olivia Wilde character Lois Lane (voice)
Jemaine Clement character Arthur Curry / Aquaman (voice)
Daveed Diggs character Victor Stone / Cyborg (voice)
John Early character Barry Allen / The Flash (voice)
Ben Schwartz character Mark / Fire Guinea Pig (voice)
Thomas Middleditch character Keith / Ice Guinea Pig (voice)
Maya Erskine character Mercy Graves (voice)
Yvette Nicole Brown character Patty (voice)
Alfred Molina character Jor-El (voice)
Lena Headey character Lara (voice)
Keith David character Dog-El (voice)
Busy Philipps character Foofy Dog (voice)
Dan Fogler character Carl / Pilot / Racer (voice)
Winona Bradshaw character Whiskers (voice)
David Pressman character Corgi (voice)
Sam Levine character Waffles / Robot Guards (voice)
Jared Stern character Bathtub Guy / JLA Hotline (voice)
Michelle Morgan character Mech Suit (voice)
Amanda Ames character Guinea-Pigasus (voice)
Gavin McCrillis character Black Kitten (voice)
