Cast
Michael Hordern
Dr. Morley (uncredited)
Robert Coote
Henry Hardcastle
Joyce Redman
Grace Hardcastle
Keith Michell
Dr. Alan Huart
Vickery Turner
Rose
Ivor Dean
City Banker in Taxi Cab (uncredited)
Arthur Hewlett
Mr. Ferguson (uncredited)
Deborah Kerr
Prudence Hardcastle
David Niven
Gerald Hardcastle
Edith Evans
Roberta Bates
David Dundas
Tony Bates
Peter Butterworth
Chemist
Annette Kerr
Gerald's Secretary
Jonathan Lynn
Chemist's Assistant
Irina Demick
Elizabeth Brett
Judy Geeson
Geraldine Hardcastle
Moyra Fraser
Woman in Tea Shop
Harry Towb
Racetrack Official