On screen
Cast
19 credited performers
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
Artwork unavailable
Grazina Frame
Girl in Office
Jo Rowbottom
Cynthia
Artwork unavailable
Edwin Apps
George (Barman)
Artwork unavailable
Godfrey Winn
Announcer (voice)
Patricia Hayes
Onlooker (uncredited)
Michael Robbins
Bargee
Barbara Windsor
Factory Girl (uncredited)