Jason Isaacs

as Superman (voice)

Amy Acker

as Lois Lane (voice)

Diedrich Bader

as Lex Luthor (voice)

Vanessa Marshall

as Diana / Wonder Woman (voice)

Phil Morris

as James Olsen (voice)

Paul Williams

as Brainiac (voice)

Greg Chun

as Ambassador Lee (voice)

Roger Craig Smith

as Batman (voice)

William Salyers

as Joseph Stalin / Jack Ryder (voice)

Jim Meskimen

as John F. Kennedy / Dwight D. Eisenhower (voice)

Sasha Roiz

as Hal Jordan (voice)

Phil LaMarr

as John Stewart / Ron Troupe / Gulag Guard (voice)

Travis Willingham

as Superior Man / Guy Gardner / Petrovich (voice)

Winter Ave Zoli

as Svetlana (voice)

Jim Ward

as George Taylor (voice)

Jason Spisak

as Dimitri (voice)

Tara Strong

as Young Superman (voice)

Anna Vocino

as Tour Guide (voice)