导演 John Brahm

Mike Farrough Pat O'Brien

Christine Blaine Constance Bennett

John Morgan John Halliday

Larry Perrin, alias Larry Ross 艾伦·巴克斯特

Dr. Adolph Behrens Erwin Kalser

Charles Atterbee Edgar Buchanan

Tommy Malone Frank Sully

Mrs. Winslow Marjorie Gateson

Professor Mudge Francis Pierlot

Mrs. Mudge Jessie Busley

Ship's Mate Penney Melville Cooper

Captain James P. Hollister Stanley Logan

Ship's Mate Jones Leslie Denison

Ship's Chief Engineer Anderson Don Beddoe

Submarine First Officer Norbert Schiller

Submarine Radio Operator Frank Alten

Ship's gunnery officer 布鲁斯·贝内特

First Mate Rex Post

Perrin's Henchman at Dock Dick Rich

Agent Olaf Hytten

Detective Arthur Mulliner

Detective Frank Baker

Sailor Frank Benson

Sailor Bobby Hale

German Sailor Fred Wolff

Ship's Lookout Douglas Gordon

Mrs. Hollister Jean Prescott

German Sailor Hans von Morhart

German Sailor Paul Michael

Man Wyndham Standing

Submarine Gunner Arno Frey

Sailor David Dunbar

Sailor James Kilgannon

Submarine Commander Hans Schumann