Jared Stern Bathtub Guy, JLA Hotline Director, Voice Dwayne Johnson Krypto Voice, Producer Kevin Hart Ace Voice Kate McKinnon Lulu Voice Vanessa Bayer PB Voice Natasha Lyonne Merton Voice Diego Luna Chip Voice Marc Maron Lex Luthor Voice Keanu Reeves Batman Voice Thomas Middleditch Keith (aka Ice Guinea Pig) Voice Ben Schwartz Mark (aka Fire Guinea Pig) Voice Olivia Wilde Lois Lane Voice Jameela Jamil Wonder Woman Voice Jemaine Clement Aquaman Voice John Early The Flash Voice Dascha Polanco Green Lantern Voice Daveed Diggs Cyborg Voice John Krasinski Superman Voice David Pressman Corgi Voice Maya Erskine Mercy Graves Voice Yvette Nicole Brown Patty Voice Alfred Molina Jor-El Voice Lena Headey Lara Voice Keith David Dog-El Voice Busy Philipps Foofy Dog Voice Dan Fogler Carl, Pilot, Radio Voice Michelle Morgan Mech Suit Voice Winona Bradshaw Whiskers Voice Sam J. Levine Boston Terrier (aka Waffles), Robot Guards Voice Gavin McCrillis Black Kitten Voice Amanda Ames Guinea-Pigasus Voice Sam Levine Co-Director John Whittington Screenwriter Patricia Hicks Producer Dany Garcia Producer Hiram Garcia Producer John Requa Executive Producer Glenn Ficarra Executive Producer Nicholas Stoller Executive Producer Allison Abbate Executive Producer Chris Leahy Executive Producer Sharon Taylor Executive Producer Courtenay Valenti Executive Producer David Egan Film Editing Jhoanne Reyes Film Editing Steve Jablonsky Original Music Kim Taylor Production Design Kristen Anderson Art Director Ryan L. Carlson Art Director Ruth Lambert Casting Jerry Siegel Creator Joe Shuster Creator Bob Kane Creator Bill Finger Creator William Moulton Marston Creator