威廉·埃塞
William Eythe
饰：Bill Dietrich
劳伊德·诺兰
Lloyd Nolan
饰：Agent George A. Briggs
西涅·哈索
Signe Hasso
饰：Elsa Gebhardt
吉恩·洛克哈特
Gene Lockhart
饰：Charles Ogden Roper
里奥·G·卡罗尔
Leo G. Carroll
饰：Col. Hammersohn
Lydia St. Clair
饰：Johanna Schmidt
William Post Jr.
饰：Walker (as William Post)
哈利贝拉福
Harry Bellaver
饰：Max Cobura
Bruno Wick
饰：Adolf Lange
Harro Meller
Harro Meller
饰：Conrad Arnulf
查尔斯·瓦根海姆
Charles Wagenheim
饰：Gustav Hausmann
Alfred Linder
饰：Adolf Klein
Renee Carson
饰：Luise Vadja
威廉·亚当斯
William Adams
饰：Customs Officer (uncredited)
Frieda Altman
饰：Saboteur (uncredited)
William Beach
William Beach
饰：Saboteur (uncredited)
Carl Benson
Carl Benson
饰：Trainee (uncredited)
Hamilton Benz
饰：Saboteur (uncredited)
George Brandt
George Brandt
饰：German Man (uncredited)
希拉·布罗姆利
Sheila Bromley
饰：Beauty Parlor Customer (uncredited)
Elmer Brown
Elmer Brown
饰：Scientist (uncredited)
汤姆·布朗
Tom Brown
饰：Intern (uncredited)
Benjamin Burroughs
Benjamin Burroughs
饰：Brigg's Aide (uncredited)
Jack Cherry
Jack Cherry
饰：Scientist (uncredited)
Henry Cordy
饰：Saboteur (uncredited)
Mita Cordy
Mita Cordy
饰：Saboteur (uncredited)
James J. Coyle
James J. Coyle
饰：Saboteur (uncredited)
Robert Culler
Robert Culler
饰：Trainee (uncredited)
Edgar Dearing
饰：Cop (uncredited)
Salo Douday
Salo Douday
饰：Von Wirt (uncredited)
Harold Dyrenforth
Harold Dyrenforth
饰：Undetermined (uncredited)
Lew Eckles
饰：Policeman (uncredited)
Bruce Fernald
Bruce Fernald
饰：FBI Agent (uncredited)
保罗·福特
Paul Ford
饰：Police Sergeant (uncredited)
文森特·加迪尼亚
Vincenzo Scognamiglio
饰：Trainee (uncredited)
Ellsworth Glath
Ellsworth Glath
饰：Trainee (uncredited)
里德·哈德利
Reed Hadley
饰：Narrator (uncredited)
Hans Hansen
Hans Hansen
饰：Saboteur (uncredited)
Fred Hillebrand
饰：Policeman (uncredited)
埃德加·胡佛
J. Edgar Hoover
饰：Himself (archive footage) (uncredited)
Anna Marie Hornemann
Anna Marie Hornemann
饰：Trainee (uncredited)
埃德温杰罗姆
Edwin Jerome
饰：Major General (uncredited)
Kenneth Konopka
饰：Saboteur (uncredited)
Frank Kreig
饰：Travel Agent (uncredited)
罗斯提莱恩
Rusty Lane
饰：Admiral (uncredited)
Bernard Lenrow
饰：Saboteur (uncredited)
Danny Leone
Danny Leone
饰：Delivery Boy (uncredited)
Everett Eugene Grunz ,Eej
E.G. Marshall
饰：Attendant at Morgue (uncredited)
John McKee
John McKee
饰：Dr. Arthur C. Appleton (uncredited)
Edward Michaels
Edward Michaels
饰：Trainee (uncredited)
Scott Moore
Scott Moore
饰：Saboteur (uncredited)
伊丽莎白·诺伊曼-菲特尔
Elisabeth Neumann-Viertel
饰：Freda Kassel (uncredited)
Delmar Nuetzman
Delmar Nuetzman
饰：Saboteur (uncredited)
Antonio J. Pires
Antonio J. Pires
饰：Watchmaker (uncredited)
弗兰克理查兹
Frank Richards
饰：Trainee (uncredited)
Douglas Rutherford
Douglas Rutherford
饰：Colonel (uncredited)
Harrison Scott
Harrison Scott
饰：Trainee (uncredited)
George Shelton
饰：Frank Jackson (uncredited)
Sara Strengell
饰：Trainee (uncredited)
Eugene Stuckmann
饰：Trainee (uncredited)
Victor Sutherland
饰：Toll Guard (uncredited)
Stanley Tackney
饰：Instructor (uncredited)
Yoshita Tagawa
Yoshita Tagawa
饰：Japanese Man (uncredited)
Jay Wesley
Jay Wesley
饰：FBI Agent (uncredited)
Marriott Wilson
Marriott Wilson
饰：Trainee (uncredited)
Gertrude Wottitz
Gertrude Wottitz
饰：Saboteur (uncredited)
John Zak
John Zak
饰：Saboteur (uncredited)
阿尔弗雷德·蔡斯勒
Alfred Zeisler
饰：Col. Strassen (uncredited)