Don Winslow (titular hero of the serial "Don Winslow of the Navy") is reassigned to the United States Coast Guard, to guard the coast against saboteurs and sneak attacks.
Don Terry
Comdr. Don Winslow
Walter Sande
Lieut. 'Red' Pennington
Elyse Knox
Mercedes Colby
Philip Ahn
Hirota
June Duprez
Tasmia
Edgar Dearing
C.P.O. Ben Cobb
Lionel Royce
Reichter
Henry Victor
Heilrich
Charles Wagenheim
Mussanti
Nestor Paiva
The Scorpion
Paul Huston
Screenplay
Griffin Jay
George H. Plympton
Richard Brooks
Additional Dialogue
Ralph M. DeLacy
Art Direction
Hans J. Salter
Music Director
Saul A. Goodkind
Supervising Editor
Alvin Todd
Editor
Irving Birnbaum
Edgar Zane
Henry McRae
Producer
Lewis D. Collins
Director
Ray Taylor
John W. Boyle
Director of Photography
William A. Sickner
