Jason Isaacs Superman (voice) Amy Acker Lois Lane (voice) Diedrich Bader Lex Luthor (voice) Vanessa Marshall Diana / Wonder Woman (voice) Phil Morris James Olsen (voice) Paul Williams Brainiac (voice) Greg Chun Ambassador Lee (voice) Roger Craig Smith Batman (voice) William Salyers Joseph Stalin / Jack Ryder (voice) Jim Meskimen John F. Kennedy / Dwight D. Eisenhower (voice) Sasha Roiz Hal Jordan (voice) Phil LaMarr John Stewart / Ron Troupe / Gulag Guard (voice) Travis Willingham Superior Man / Guy Gardner / Petrovich (voice) Winter Ave Zoli Svetlana (voice) Jim Ward George Taylor (voice) Jason Spisak Dimitri (voice) Tara Strong Young Superman (voice) Anna Vocino Tour Guide (voice)