Rex
饰 Rex, the Wonder Horse
Mamo Clark
饰 Princess Melani
Herbert Rawlinson
饰 Grant Jackson
William Newell
饰 Hank McGlaurie
John Ward
饰 Anthony Tupper
John Dilson
饰 E.G. Ellsworth
Selmer Jackson
饰 Mr. Canfield
George Chesebro
饰 Draker, Island Operations Chief
Bob Kortman
饰 Gang Yacht Capt. Wilson
George Cleveland
饰 Goebel, Gang Scientist
Lloyd Whitlock
饰 Lamar, Headquarters Gang Member [Chs. 1-6]
Tiny Roebuck
饰 Eppa the Wrestler
Roscoe Gerald
饰 Price - Cave Thug in Visor (uncredited)
