Harry H. Corbett

Hemel Pike

Hugh Griffith

Joe Turnbull

Eric Sykes

The Mariner

Ronnie Barker

Ronnie

Julia Foster

Christine Turnbull

Miriam Karlin

Nellie Marsh

Eric Barker

Mr Parkes, the Foreman

Derek Nimmo

Dr. Scott

Norman Bird

Waterways Supervisor Albert Williams

Richard Briers

Tomkins

Brian Wilde

Policeman

George A. Cooper

Official in Office

Grazina Frame

Girl in Office

Jo Rowbottom

Cynthia

Edwin Apps

George (Barman)

Godfrey Winn

Announcer (voice)

Patricia Hayes

Onlooker (uncredited)

Michael Robbins

Bargee

Barbara Windsor

Factory Girl (uncredited)