The human race is threatened by a powerful creature, and only the combined power of Superman, Batman, Wonder Woman, Green Lantern, Martian Manhunter and The Flash can stop it. But can they overcome their differences to thwart this enemy using the combined strength of their newly formed Justice League?
David Boreanaz
as Hal Jordan / Green Lantern (voice)
Miguel Ferrer
as J'onn J'onzz / Martian Manhunter (voice)
Neil Patrick Harris
as Barry Allen / The Flash (voice)
John Heard
as Ace Morgan (voice)
Lucy Lawless
as Wonder Woman (voice)
Kyle MacLachlan
as Superman (voice)
Lex Lang
as Rick Flagg (voice)
Phil Morris
as King Faraday (voice)
Kyra Sedgwick
as Lois Lane (voice)
Brooke Shields
as Carol Ferris (voice)
Jeremy Sisto
as Batman (voice)
Joe Alaskey
as Bugs Bunny (voice)
