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