The Guinea Pig

Sheila Sim as Lynne Hartley Edith Sharpe as Mrs. Hartley Kynaston Reeves as The Bishop Oscar Quitak as David Tracey Robert Desmond as (Uncredited) Jack McNaughton Peter Reynolds as Grimmett Herbert Lomas as Sir James Corfield Joan Hickson as Mrs. Read Olive Sloane as Aunt Mabel Bernard Miles as Mr. Read Ray Cooney Richard Attenborough as Jack Read Robert Flemyng as Nigel Lorraine Hay Petrie as Peck Timothy Bateson as Tracey Anthony Nicholls as Mr. Stringer Clive Baxter as Gregory Anthony Newley as Miles Minor Tony Wager as Bert James Kenney John Forrest as Fitch Brenda Hogan as Lorna Beckett Edward Judd

Bernard Miles Screenplay Gilbert Taylor Director of Photography John Boulting Producer