The Secret of Treasure Island

Don Terry

Larry Kent

Gwen Gaze

Toni Morrell

Walter Miller

Carter 'The Shark' Collins

George Rosener

Capt. Samuel Cuttle

Grant Withers

Roderick Gridley

Hobart Bosworth

Dr. X

Sandra Karina

Nurse Zanya

P.J. Kelly

Prof. Gault

Yakima Canutt

Dreer (Mole-Men Leader)

William Farnum

George Brennan Westmore (Editor)

Joe Caits

Saltwater Jerry [Chs.1,4-7,13-15]

Colin Campbell

Hawkins (the Butler) [Chs. 1-3]

Dave O'Brien

Det. Jameson [Chs. 4-7]

William Royle

Paul Thorndyke [Ch.1]

Warner Richmond

Capt. Tom Stanton, alias Capt. Tom Faxton [Ch.1]

Edward Linden

Director of Photography

Elmer Clifton

Director, Screenplay

George Rosener

Screenplay

L. Ron Hubbard

Story

Abe Meyer

Original Music Composer

George M. Merrick

Screenplay

Herman Schopp

Director of Photography