Gordon Harker
— Geoge Hawkins
Raymond Lovell
— Hausemann / Lord Buckley
Finlay Currie
— Captain Andrew Fletcher
Philip Friend
— John Cooper
Jean Kent
— Frances Lane
Frederick Cooper
— Charles
Carl Jaffe
— Schultz
John Salew
— Wilson
Veronica Rose
— Miss Conway
Anthony Hawtrey
— Brent
Anthony Holles
— Waiter
Patrick Aherne
— Mellows
Frank Bagnall
— Lehmann
Ferdy Mayne
— German Radio Operator
Friedrich Richter
— Wolheim
Leonard Sharp
— Miles
Cecil Bevan
— Lord Buckley's Butler
Noel Dainton
— Police Inspector