Marlene Dietrich

Magda / X27

Victor McLaglen

Colonel Kranau

Gustav von Seyffertitz

Austrian Secret Service Chief

Warner Oland

Colonel von Hindau

Lew Cody

Colonel Kovrin

Barry Norton

Young Lieutenant - Firing Squad

Max Barwyn

Colonel Kranau's Aide

B.F. Blinn

Gambler with Glasses

Allan Cavan

Davison Clark

Alexis Davidoff

William B. Davidson

Walter Downing

Geraldine Dvorak

Adolph Faylauer

Joseph W. Girard

Al Hart

Ramsay Hill

George Irving

Ethan Laidlaw

Tom Lucas

Wilfred Lucas

Ruth Mayhew

Harold Nelson

Paul Panzer

Bill Powell

Hotel Manager (uncredited)

Buddy Roosevelt

Scott Seaton

Harry Semels