Teddy, working at an advertising agency, has to come up with a campaign for frozen porridge.

Marty Feldman ... Teddy
Judy Cornwell ... Liz
Garry Miller ... Richard
Shelley Berman ... Nat Kaplan / Kaplan
Hy Hazell ... Mrs. Kaplan
Julie Ege ... Inga
Penelope Keith ... Lotte
Moray Watson ... Chandler
Jack Watson ... McLaughlin
Mark Elwes ... Rokes
Harold Innocent ... Jimpson
Dinsdale Landen ... Rev. Geoffrey Mellish
John McKelvey ... Col. Belper
Charles Lewsen ... Arthur Soames
Maggie Jones ... Hetty Soames
Ellis Dale ... Leonard Crape
Frances de la Tour ... Maud Crape (as Frances De la Tour)
Patrick Cargill ... Wallace Trufitt M.P.
Patience Collier ... Mrs. Monty Levin
Ray Fell ... Goldilocks Presenter
Annabel Leventon ... Chandler's Secretary
Mischa De La Motte ... Trufitt's Manservant
Veronica Clifford ... Hot Dog Girl
Diana Quiseekay ... Elvira
Vicki Hodge ... Pippa
Sarah Badel ... Joanna Snow
John Wells ... Tolworth
Michael Bates ... Magistrate
John Hamill ... Porridge Eater
Robert Farrant ... Porridge Eater
Kenny Rodway ... Porridge Eater
Dave Dee ... Wednesday Play Star
Judy Huxtable ... Frankenstein Heroine
Rose Hill ... Shopping Woman
Winnie Holman ... Shopping Woman
Bernard Sharpe ... Shopping Man
Roland Curram ... Arthur And Mario
David Hutcheson ... Stockbroker
Jack Arrow ... TV Show Audience
Ann Barrass ... TV Show Audience
Roy Beck ... Passer by
Alan Bennett ... Defence Solicitor
Erika Bergmann ... Hildegarde
John Bindon ... Party Guest
Willy Bowman ... Church Choir & Congregation
Carol Cleveland ... Suzy
Fiona Curzon
Eden Fox ... Church Choir & Congregation
Geraldine Gardner ... Girl
Robert Gillespie ... Porridge film director
Sheila Gish ... Mother in TV Commercial
Christopher Godwin ... Magistrates' Clerk
Ned Hood ... Church Choir & Congregation
David Lee ... Ern
James Payne ... Taxi Driver with the Dwarfs
Ian Selby ... TV Show Audience
Marianne Stone ... TV Production Assistant #1