李·鲍曼
Lee Bowman
饰：Lt. William 'Bill' Gordon
琼·罗杰斯
Jean Rogers
饰：Elaine Carter
莫娜·玛丽斯
Mona Maris
饰：Olivia Kerlov
卡尔·埃斯蒙德
Carl Esmond
饰：Andre Leemuth
保罗·卡瓦纳
Paul Cavanagh
饰：Cmdr. Charles Brennan
Blanche Yurka
饰：Mrs. Savarina
拉塞尔·希克斯
Russell Hicks
饰：John Carter, Special Assistant to the Secretary of the Navy
Arthur Shields
饰：Prof. Harvey Lessmore
William Post Jr.
饰：Lanny, Decoding Security Chief
威廉·坦嫩
William Tannen
饰：Lt. Jasper Dean, Decoding Room
弗莱德里克·沃洛克
Frederick Worlock
饰：Dr. Jackwin, San Diego
科特·博伊斯
Curt Bois
饰：Kestrin
Felix Basch
饰：De Segroff, Head of Spy Ring
艾迪生·理查兹
Addison Richards
饰：Gordon Trisby, Decoding Room Chief
爱德华·菲尔丁
Edward Fielding
饰：Secretary of the Navy
路易斯 V.阿尔科
饰：Assistant (uncredited)
Tex Brodus
饰：Officer (uncredited)
Joyce Bryant
Joyce Bryant
饰：Girl (uncredited)
George M. Carleton
饰：Chaplain (uncredited)
Frances Carson
饰：Mrs. Hendricks (uncredited)
汉斯·康拉德
Hans Conried
饰：Desk Clerk, Park Hotel (uncredited)
Hal Cooke
饰：Orderly (uncredited)
Edward Earle
饰：Dr. Jackwin's Assistant (uncredited)
拜伦·弗格
Byron Foulger
饰：Decoding Room Clerk (uncredited)
Arno Frey
饰：German (uncredited)
J.安东尼休斯
J. Anthony Hughes
饰：Pat Riley (uncredited)
Eddie Lee
饰：Japanese Man (uncredited)
汤米·李
Tommy Lee
饰：Japanese Man (uncredited)
Grace Lem
饰：Japanese Woman (uncredited)
George Lollier
饰：Marine (uncredited)
Alphonse Martell
饰：Stronskoff (uncredited)
伯特·穆尔豪斯
Bert Moorhouse
饰：Decoding Room Clerk (uncredited)
Bill Nind
饰：Waiter (uncredited)
帕特·奥马利
Pat O'Malley
饰：Captain Chandler, USS 'Woodhaven' (uncredited)
亨利·罗兰
Henry Rowland
饰：Elevator Operator at Park Hotel (uncredited)
Syd Saylor
饰：Navy Recruiter (uncredited)
米尔本·斯通
Milburn Stone
饰：Park Hotel desk clerk (uncredited)
Phil Tead
饰：Taxi Driver (uncredited)
米哈伊尔·维萨罗夫
Michael Visaroff
饰：Col. Petroff (uncredited)
Hans von Morhart
饰：German Operator (uncredited)
James Warren
饰：FBI Agent (uncredited)
Gayne Whitman
饰：Barini (uncredited)
Beal Wong
饰：Decoding Room Clerk (uncredited)