Deborah Kerr

Character: Prudence Hardcastle

David Niven

Character: Gerald Hardcastle

Robert Coote

Character: Henry Hardcastle

Irina Demick

Character: Elizabeth Brett

Joyce Redman

Character: Grace Hardcastle

Judy Geeson

Character: Geraldine Hardcastle

Keith Michell

Character: Dr. Alan Huart

Edith Evans

Character: Roberta Bates

David Dundas

Character: Tony Bates

Vickery Turner

Character: Rose

Hugh Armstrong

Character: Ted

Peter Butterworth

Character: Chemist

Moyra Fraser

Character: Woman in Tea Shop

Annette Kerr

Character: Gerald's Secretary

Harry Towb

Character: Racetrack Official

Jonathan Lynn

Character: Chemist's Assistant

Ivor Dean

Character: City Banker in Taxi Cab (uncredited)

Arthur Hewlett

Character: Mr. Ferguson (uncredited)

Michael Hordern

Character: Dr. Morley (uncredited)

John Tatham

Character: Man Sitting in Grandstand at the Races (uncredited)

Joseph Tregonino

Character: Waiter (uncredited)