P'tang, Yang, Kipperbang

John Albasiny

Alan Duckworth

Abigail Cruttenden

Ann Lawton

Maurice Dee

Geoffrey Whitaker

Alison Steadman

Miss Land

Mark Brailsford

Abbo

Christopher Karallis

Shaz

Frances Ruffelle

Eunice

Robert Urquhart

Headmaster

Garry Cooper

Tommy

Richenda Carey

Botany Teacher

Nicola Prince

Maureen

Maurice O'Connell

Gym Teacher

Tim Seely

French Teacher

Peter Dean

Policeman

Dave Atkins

Fish Shop Owner

John Arlott

Himself (voice)

Maureen Lipman

Alan's Mother (voice) (uncredited)

Eric Richard

Road Worker

Arthur Whybrow

Road Worker

Dominic Holland

Schoolboy