Donald Wolfit as Colonel Price

Robert Bray as Major Shane

Jane Griffiths as Vicki Toller

Carl Jaffe as Stefan Toller

Anton Diffring as Joseph Brezina

Christopher Lee as Doctor Neumann

Karl Stepanek as Friederich Suderman

Oscar Quitak as Thomas Rilke

Frederick Schiller as Alfred Baum

Rupert Davies as Clinton

John Van Eyssen as Lieut. Grant

Colin Croft as Theodore Dehmel

Dennis Edwards as Man Cutting Down Zimmerman's Body

Fletcher Lightfoot as Man Giving Suderman Telegram

John Herrington as Albert

George Herbert as Patient

Frederick Schrecker as Suderman's Aide

Marie Lightfoot as Nurse

Reginald Atkinson as Postman

Ann Greenland as Rilke's Girl

Christopher Cooke as

Bernard Quinn as Toller's Student