Wonder Woman [Diana Prince]; Steve Trevor; Etta Candy; the Holliday Girls; Hippolyte; The Amazons (in flashback); Dotsie (Steve Trevor's niece, introduction); Queen Darla (introduction); King Aros (introduction); Professor Zool (introduction); Giganta (villain, a gorilla, introduction); the Tree Men (villains, introduction for all); Achilles (villain, introduction); John (villain, introduction); Domo (villain, introduction); a group of rebels (villains, introduction for all)
Synopsis
When Steve Trevor's niece is kidnapped by a gorilla, Wonder Woman captures the Gorilla and turns her over to Professor Zool, who uses his evolution machine to turn her human. But the machine is reversed and sends every one else back to prehistoric times.