Cary Grant
— Michael Andrews
Gertrude Michael
— Rosemary Haydon
Claude Rains
— John Stevenson
Margaret Swope
— Nurse Rowland
Jameson Thomas
— Cullen
Nick Shaid
— Haidar
Kathleen Burke
— Ilya
Colin Tapley
— Lieutenant Prescott
Billy Bevan
— Private Foster
Claude King
— General
Frazer Acosta
— Armenian officer (uncredited)
Robert Adair
— Sergeant in general's office (uncredited)
Malay Clu
— Armenian guard (uncredited)
Elspeth Dudgeon
— Head Nurse (uncredited)
Mark Strong
— Officer (uncredited)