David Boreanaz
Hal Jordan / Green Lantern (voice)

Miguel Ferrer
J'onn J'onzz / Martian Manhunter (voice)

Neil Patrick Harris
Barry Allen / The Flash (voice)

John Heard
Ace Morgan (voice)

Lucy Lawless
Wonder Woman (voice)

Kyle MacLachlan
Superman (voice)

Lex Lang
Rick Flagg (voice)

Phil Morris
King Faraday (voice)

Kyra Sedgwick
Lois Lane (voice)

Brooke Shields
Carol Ferris (voice)

Jeremy Sisto
Batman (voice)

Joe Alaskey
Bugs Bunny (voice)

Jeff Bennett
Sportscaster (voice)

Corey Burton
Abin Sur (voice)

Townsend Coleman
Dr. Magnus (voice)

Keith David
The Centre (voice)

Sean Donnellan
Haley (voice)

Robin Atkin Downes
The Guardian (voice)

Shane Haboucha
Robin (voice)

David Hunt
Harry (voice)

Vicki Lewis
Iris West (voice)

Joe Mantegna
Crooner (voice)

Vanessa Marshall
Amazon Woman (voice)

Jim Meskimen
Slam Bradley (voice)

James Arnold Taylor
Captain Cold (voice)