Credits
Cast

Billy Halop
Billy Adams

Huntz Hall
Toby Nelson

Gabriel Dell
Bilge

Bernard Punsly
Butch
Hal E. Chester
Swab

Reed Hadley
Carl Tonjes

William Hall
Brack Warren

Mary Field
Aggie Nelson

John McGuire
Tom Adams

Marcia Ralston
Leah Carlton

Stanley Blystone
Capt. Olaf Nelson

Edward Keane
Elliott Carlton

Richard Alexander
Jenkins

Ernie Adams
Zeke

Jack Rube Clifford
Pug Anderson

Morgan Wallace
Capt. Lester

Eddie Dunn
Whaler Captain

Forrest Taylor
Fenwick the Inventor
Joe Recht
Lug

Richard Bond
Krans

James Blaine
Desk Sergeant

Ed Cassidy
Guard at Hospital

Jack Cheatham
Duke

Dick Curtis
Mate on the 'Astoria'
Larry Grenier
Island Guard

Al Hill
Speeding Motorist (archive footage)
Jerry Jerome
'Astoria' Officer
Guy Kingsford
Sven - Whaler Crewman

Jerry Mandy
Tony - Grocer

John Merton
First Island Guard

Jack Mulhall
'Dolphin' Radioman

Paul Newlan
Chris - Second Island Guard

Eddie Parker
Coral Strand Crewman

Jack Perrin
Island Guard-Launch Pilot

House Peters Jr.
Agent Burke
Anthony Rogers
Jim - Police Boat Pilot
Hans Schumm
Sub Captain
George Sherwood
Island Guard

Mickey Simpson
Angry Motorist

Tom Steele
Coral Strand Crewman / Whaler Crewman
Frank Wayne
Fenwick's Guard

Duke York
Pete - Whaler Crewman
Bill Hunter
Policeman
Bill Moss
Joe Pope
Jack Holmes
Robert R. Stephenson
Camera
William A. Sickner
Director of Photography
Crew

Bud Geary
Stunts

Dale Van Sickel
Stunts

Tom Steele
Stunts

Eddie Parker
Stunts
Bud Wolfe
Stunts

Duke York
Stunts
Directing

Ford Beebe
Director
John Rawlins
Director
Editing
Louis Sackin
Editor
Joseph Gluck
Editor
Patrick Kelley
Editor
Alvin Todd
Editor
Production
Henry MacRae
Producer
Writing
Clarence Upson Young
Screenplay
Paul Huston
Screenplay