Robinson Crusoe of Clipper Island

Mala

as Agent Ray Mala

Rex

as Rex, the Wonder Horse

Mamo Clark

as Princess Melani

Herbert Rawlinson

as Grant Jackson

William Newell

as Hank McGlaurie

John Ward

as Anthony Tupper

John Dilson

as E.G. Ellsworth

Selmer Jackson

as Mr. Canfield

John Picorri

as Porotu

George Chesebro

as Draker, Island Operations Chief

Bob Kortman

as Gang Yacht Capt. Wilson

George Cleveland

as Goebel, Gang Scientist

Lloyd Whitlock

as Lamar, Headquarters Gang Member [Chs. 1-6]

Tiny Roebuck

as Eppa the Wrestler

Roscoe Gerald

as Price - Cave Thug in Visor (uncredited)