Robert Newton

Capt. David Grant

Raymond Lovell

Paul Faber

Guy Middleton

Capt. Tony Hunter

Muriel Pavlow

Marion Decker

Herbert Lom

Keitel

John Ruddock

Bowman

Martin Miller

Professor Hansen

Brenda Bruce

Lily Leggett

Scott Forbes

Lieut. Allen (as Julian Dallas)

Leslie Dwyer

George Leggett

Valentine Dyall

Sir George Bell

Bruce Gordon

Hood

Marius Goring

Frederick Jannings

Olga Lindo

Mrs. Coleman

Stuart Lindsell

Inspector Martin

Gordon McLeod

Inspector Longhurst

Joan Maude

Sidney Vane

Hay Petrie

Station Master

Wilfrid Hyde-White

Taxi Driver

Johnnie Schofield

Factory Watchman (uncredited)

John Stone

Young Newlywed (uncredited)