Red Ensign

Leslie Banks

David Barr

Carol Goodner

June MacKinnon

Frank Vosper

Lord Dean

Alfred Drayton

Manning

Campbell Gullan

Hannay

Percy Parsons

Casey

Fewlass Llewellyn

Sir Gregory

Henry Oscar

Raglan

Allan Jeayes

Grierson

Donald Calthrop

Macleod

Henry Caine

Bassett

George Carney

Mr. Lindsey

Jack Lambert

Police Inspector

John Laurie

Wages Accountant

Frederick Piper

Mr. McWilliams

Jack Raine

Testing Official

Peter Birch

Sound Recordist

Alfred Junge

Art Direction

Michael Powell

Director, Writer

L. du Garde Peach

Dialogue

Leslie Rowson

Director of Photography

Geoffrey Barkas

Editor

Jerome Jackson

Writer, Producer

Gordon Conway

Costume Design