Sea Raiders

Billy Adams

Billy Halop

Toby Nelson

Huntz Hall

Bilge

Gabriel Dell

Butch

Bernard Punsly

Swab

Hal E. Chester

Carl Tonjes

Reed Hadley

Brack Warren

William Hall

Aggie Nelson

Mary Field

Tom Adams

John McGuire

Leah Carlton

Marcia Ralston

Capt. Olaf Nelson

Stanley Blystone

Elliott Carlton

Edward Keane

Jenkins

Richard Alexander

Zeke

Ernie Adams

Pug Anderson

Jack Rube Clifford

Capt. Lester

Morgan Wallace

Whaler Captain

Eddie Dunn

Fenwick the Inventor

Forrest Taylor

Lug

Joe Recht

Krans

Richard Bond

Desk Sergeant

James Blaine

Guard at Hospital

Ed Cassidy

Duke

Jack Cheatham

Mate on the 'Astoria'

Dick Curtis

Island Guard

Larry Grenier

Speeding Motorist (archive footage)

Al Hill

'Astoria' Officer

Jerry Jerome

Sven - Whaler Crewman

Guy Kingsford

Tony - Grocer

Jerry Mandy

First Island Guard

John Merton

'Dolphin' Radioman

Jack Mulhall

Chris - Second Island Guard

Paul Newlan

Coral Strand Crewman

Eddie Parker

Island Guard-Launch Pilot

Jack Perrin

Agent Burke

House Peters Jr.

Jim - Police Boat Pilot

Anthony Rogers

Sub Captain

Hans Schumm

Island Guard

George Sherwood

Angry Motorist

Mickey Simpson

Coral Strand Crewman / Whaler Crewman

Tom Steele

Fenwick's Guard

Frank Wayne

Pete - Whaler Crewman

Duke York

Policeman

Bill Hunter

Bill Moss

Joe Pope

Jack Holmes

Robert R. Stephenson