Barnacle Bill

Alec Guinness

As Captain William Horatio Ambrose

Harry Locke

As Reporter

Frederick Piper

As Barman

Fred Griffiths

As Bus Driver

Gerald Case

As Commander

William Mervyn

As Captain

John Horsley

As First Surgeon

Derek Waring

As Second Surgeon

Donald Pleasence

As Cashier

Newton Blick

As Bank Manager

Irene Browne

As Mrs. Barrington

Percy Herbert

As Tommy

Victor Maddern

As Figg

Harold Goodwin

As Duckworth

Junia Crawford

As Evie

Warren Mitchell

As Artie White

Frank Burdett

As Bald Man

Maurice Denham

As Crowley

Lloyd Lamble

As Superintendent Browning

Martyn Woodman

As Reggie

Donald Churchill

As Roy

Mike Morgan

As Larry

Max Butterfield

As Phil

Jackie Collins

As June

Susan Gibson

As Sheila

Diana Chesney

As Mrs. Figg

Miles Malleson

As Angler

Allan Cuthbertson

As Chailey

Charles Lloyd Pack

As Tritton

Lionel Jeffries

As Garrod

George Rose

As Bullen

Richard Wattis

As Registrar of Shipping

Eric Pohlmann

As Liberamanian Consul

Charles Cullum

As Maj. Kent

Joan Hickson

As Mrs. Kent

Alexander Harris

As Adrian

Sam Kydd

As Frogman

Toke Townley

As Timmins

Elsie Wagstaff

As Mrs. Gray

Anthony Sagar

As Coxswain