Will Hay

William Potts / Muller

Frank Pettingell

Professor Hoffman

Julien Mitchell

General Von Glotz

Charles Hawtrey

Max

Barry Morse

Kurt

Peter Ustinov

Krauss

Peter Croft

Hans

Anne Firth

Lena

Leslie Harcourt

Vogel

Jeremy Hawk

A.D.C.

Raymond Lovell

Schmidt

Aubrey Mallalieu

Rector

John Williams

Maj. Bishop

Lawrence O'Madden

Col. Truscott

John Boxer

British Pilot

Basil Dearden

Will Hay