as Agent Ray Mala
as Rex, the Wonder Horse
as Princess Melani
as Grant Jackson
as Hank McGlaurie
as Anthony Tupper
as E.G. Ellsworth
as Mr. Canfield
as Porotu
as Draker, Island Operations Chief
as Gang Yacht Capt. Wilson
as Goebel, Gang Scientist
as Lamar, Headquarters Gang Member [Chs. 1-6]
as Eppa the Wrestler
as Price - Cave Thug in Visor (uncredited)