Superman; Martian Manhunter; Green Lantern [John Stewart]; Hawkgirl; Batman; Blue Beetle [Ted Kord]; Booster Gold; Atom [Ray Palmer]; General Zod; Ursa; Mr. Mxyzptlk; Supergirl [Kara In-Ze](cameo); Creeper (cameo); Power Girl (cameo); Elongated Man (cameo); Atom Smasher (cameo); Ray (cameo); Green Arrow (cameo); Wonder Woman (cameo); Wildcat [Ted Grant](cameo); Red Tornado (cameo); Flash [Wally West](cameo); Vigilante [Greg Saunders](cameo); Dr. Fate (cameo)