Brian Donlevy

Dr. Franticek Svoboda

Walter Brennan

Prof. Stephen Novotny

Anna Lee

Masha Novotny

Gene Lockhart

Emil Czaka

Hans Heinrich von Twardowski

Reinhard Heydrich

Nana Bryant

Mrs. Hellie Novotny

Margaret Wycherly

Ludmilla Novotny

Dennis O'Keefe

Jan Horak

Tonio Selwart

Chief of Gestapo Kurt Haas

Alexander Granach

Gestapo Insp. Alois Gruber

Reinhold Schünzel

Gestapo Insp. Ritter

Ludwig Donath

Schirmer

Arno Frey

Camp Lieutenant Itnut

Sarah Padden

Mrs. Georgia Dvorak

Jonathan Hale

Dedic

Lionel Stander

Banya

Chester Conklin

Cook (uncredited)

Claire McDowell

Counterwoman (uncredited)

William Roy

Boda Novotny

Edmund MacDonald

Dr. Pillar

Byron Foulger

Bartos

Virginia Farmer

Mrs. Nimitz

George Irving

Neeval

James Bush

Peacock

Lester Sharpe

Rudy

Arthur Loft

Gen. Votruba

John Abbott

Hostage (scenes deleted)

Louis Adlon

Adjutant (uncredited)

Erville Alderson

Liberal Official (uncredited)

Richard Alexander

Slugger in Theater (uncredited)

Dwight Frye

Hostage

Ralph Dunn

Czech Policeman (uncredited)

Bud Jamison

Fat Man (uncredited)

Philip Van Zandt

Officer (uncredited)