William Baldwin as Batman (voice)

Mark Harmon as Superman (voice)

Chris Noth as Lex Luthor (voice)

Gina Torres as Superwoman (voice)

James Woods as Owlman (voice)

Jonathan Adams as J'Onn J'Onzz (voice)

Brian Bloom as Ultraman (voice)

Bruce Davison as President Wilson (voice)

Josh Keaton as The Flash / Aquaman (voice)

Vanessa Marshall as Wonder Woman (voice)

Nolan North as Green Lantern / Power Ring (voice)

Freddi Rogers as Rose Wilson (voice)

James Patrick Stuart as Johnny Quick / The Jester (voice)

Carlos Alazraqui as Breakdance / Secret Service Agent (voice)

Richard Green as Jimmy Olsen (voice)

Jim Meskimen as Captain Super (voice)

Andrea Romano as Watchtower Computer / Reporter (voice)

Bruce Timm as Uncle Super / Captain Super Jr. (voice)

Kari Wuhrer as Model Citizen / Black Canary (voice)

Cedric Yarbrough as Firestorm / Black Lightning (voice)