George Formby

George Hepplewhite

Phyllis Calvert

Mary Wilson

Garry Marsh

Mendez

Romney Brent

Slim Selwyn

Bernard Lee

Oscar

Coral Browne

Iris

Helena Pickard

Oscar's Wife

Diana Beaumont

Greta, Hotel Receptionist

Torin Thatcher

U-Boat Commander

Donald Calthrop

Frederick Strickland

Hal Gordon

Alf Arbuckle, Dinky Do

Johnnie Schofield

Solicitous Steward

Alec Clunes

Officer (uncredited)

Walter Fitzgerald

Dockside Policeman (uncredited)

Ian Fleming

Col. Harcourt (uncredited)

Jack Hobbs

Conway (uncredited)

Albert Lieven

German Radio Operator (uncredited)

Charles Paton

Simion (uncredited)

Bill Shine

Untipped Steward (uncredited)

Ronald Shiner

Musician (uncredited)

Ian Wilson

Parker, Dinky Do (uncredited)