Characters: Justice League of America [Batman (Earth-1); Hawkman [Katar Hol]; Wonder Woman (Earth-1); Zatanna; Atom [Ray Palmer]; Red Tornado; Superman (Earth-1, cameo); Aquaman (cameo); Green Arrow (Earth-1, cameo); Black Canary (cameo); Elongated Man (cameo); Flash [Barry Allen] (cameo); Firestorm (cameo)]; Jeffrey Sloane (cameo); Kathy Sutton (cameo); Traya (cameo); Ursak's ship (villain); Ursak (flashback)