Casey Kasem

Robin, Computer, Dick Grayson

Olan Soule

Batman, Professor Martin Stein, Astronaut

Shannon Farnon

Wonder Woman, Hawkgirl, Rima

Frank Welker

Marvin, Wonder Dog, Darkseid

Michael Bell

Zan, Gleek, The Riddler

Louise Williams

Jayna, Little Sister, Young Giganta

William Woodson

Narrator, Additional Voices