波利斯·卡洛夫

Boris Karloff

饰：Valdar, aka Karl Schiller

玛格丽特·琳赛

Margaret Kies

饰：Helene Von Lorbeer, aka Frances Hautry

布鲁斯·莱斯特

Bruce Lester

饰：Frank Bennett

伦纳德米迪

Leonard Mudie

饰：Colonel James Yeats

福尔摩斯·赫伯特

Holmes Herbert

饰：Arthur Benneft

Austin Fairman

饰：George Bennett

威廉·拜利

饰：British Intelligence agent (uncredited)

Louise Brien

饰：Miss Risdon, Bennett's secretary (uncredited)

格伦·卡文德

Glen Cavender

饰：Under Officer Pfalz (uncredited)

Clarence Derwent

饰：Milkman (uncredited)

Joe De Stefani

饰：German officer (uncredited)

Carlos De Valdez

饰：Von Ritter (uncredited)

Arno Frey

饰：German junior officer (uncredited)

Frederick Giermann

饰：Otto Kurtz (uncredited)

劳伦斯·格兰特

Lawrence Grant

饰：Brigadier General (uncredited)

卡尔·哈博

Carl Harbaugh

饰：German soldier (uncredited)

山姆·哈里斯

Sam Harris

饰：Cabinet minister (uncredited)

Winifred Vera Emily Harris

饰：Mrs. Maude Bennett (uncredited)

莱兰·霍奇森

Leyland Hodgson

饰：Lord Sudbury (uncredited)

斯图尔特·霍姆斯

Stuart Holmes

饰：Luchow, a German soldier (uncredited)

威廉·考夫曼

Willy Kaufman

饰：German corporal (uncredited)

克劳福德·肯特

Crauford Kent

饰：Commander Phelps (uncredited)

莫顿·劳瑞

Morton Lowry

饰：Lieutenant Borden (uncredited)

莱斯特·马修斯

Lester Matthews

饰：Henry Thompson (uncredited)

弗兰克·梅奥

Frank Mayo

饰：Brixton, Intelligence agent (uncredited)

保罗·潘策尔

Paul Panzer

饰：Peasant (uncredited)

杰克·理查森

Jack Richardson

饰：Cockney soldier (uncredited)

Ferdinand Schumann-Heink

饰：German officer (uncredited)

Hans Schumm

饰：German senior officer (uncredited)

约翰·格雷厄姆·斯佩西

John Graham Spacey

饰：Crichton, Intelligence agent (uncredited)

Bob Stevenson

Bob Stevenson

饰：Cockney soldier (uncredited)

Evan Thomas

饰：Major Andrews (uncredited)

戴维·瑟斯比

David Thursby

饰：Agent reporting Strengler's identity (uncredited)

Frederick Vogeding

饰：Baron Kuglar (uncredited)

Leonard Willey

饰：Captain Stuart (uncredited)

玛瑞丝·韦克松

Maris Wrixon

饰：Dorothy Bennett (uncredited)

Henry Zynda

饰：German (uncredited)

Robert R. Stephenson

戴维·卡文迪什

David Cavendish