Paul Williams Brainiac (voice)
Diedrich Bader Lex Luthor (voice)
Jason Isaacs Superman (voice)
Tara Strong Young Superman (voice)
Amy Acker Lois Lane (voice)
Jim Meskimen John F. Kennedy / Dwight D. Eisenhower (voice)
Phil LaMarr John Stewart / Ron Troupe / Gulag Guard (voice)
Travis Willingham Superior Man / Guy Gardner / Petrovich (voice)
Sasha Roiz Hal Jordan (voice)
Greg Chun Ambassador Lee (voice)
Bruce Timm Executive Producer
Roger Craig Smith Batman (voice)
Jason Spisak Dimitri (voice)
Phil Morris James Olsen (voice)
Winter Ave Zoli Svetlana (voice)
Sam Liu Director, Producer
J. M. DeMatteis Writer
Jim Ward George Taylor (voice)
Sam Register Executive Producer
Vanessa Marshall Diana / Wonder Woman (voice)
Mark Millar Comic Book
William Salyers Joseph Stalin / Jack Ryder (voice)
James Krieg Co-Producer
Wes Gleason Casting
Frederik Wiedmann Original Music Composer
Anna Vocino Tour Guide (voice)
Kilian Plunkett Comic Book
Amy McKenna Producer
Melissa Lohman Production Manager
Christopher D. Lozinski Editor