Reparto
Duke York
Pete - Whaler Crewman
Richard Bond
Krans
Ed Cassidy
Guard at Hospital
Huntz Hall
Toby Nelson
Reed Hadley
Carl Tonjes
William Hall
Brack Warren
Marcia Ralston
Leah Carlton
Bernard Punsly
Butch
Ernie Adams
Zeke
Mickey Simpson
Angry Motorist
Paul Newlan
Chris - Second Island Guard
Hans Schumm
Sub Captain
Richard Alexander
Jenkins
Jack Rube Clifford
Pug Anderson
Al Hill
Speeding Motorist (archive footage)
Edward Keane
Elliott Carlton
Billy Halop
Billy Adams
Gabriel Dell
Bilge
John McGuire
Tom Adams
Morgan Wallace
Capt. Lester
Jack Mulhall
'Dolphin' Radioman
Jack Perrin
Island Guard-Launch Pilot
House Peters Jr.
Agent Burke
James Blaine
Desk Sergeant
Jack Cheatham
Duke
Dick Curtis
Mate on the 'Astoria'
Jerry Mandy
Tony - Grocer
John Merton
First Island Guard
Eddie Parker
Coral Strand Crewman
Stanley Blystone
Capt. Olaf Nelson
Eddie Dunn
Whaler Captain
Forrest Taylor
Fenwick the Inventor