Nicol Williamson
— Bill Maitland
Eleanor Fazan
— Anna Maitland
Ingrid Boulting
— Jane Maitland (as Ingrid Brett)
Jill Bennett
— Liz Eaves
Peter Sallis
— Hudson
David Valla
— Jones
Eileen Atkins
— Shirley
Gillian Hills
— Joy
Isabel Dean
— Mrs. Gamsey
John Normington
— Maples
Clare Kelly
— Mrs. Anderson
Lindsay Anderson
— Barrister
Hilary Hardiman
— Mrs. Watson
John Savident
— Mr. Watson
June Brown
— Dinner Guest
Norma Shebbeare
— Dinner Guest
Ishaq Bux
— Dinner Guest
James Ottaway
— Dinner Guest
Penny Bird
— Sheila
Alan Selwyn
— Plain Clothes Detective
Martin Grace
— Plain Clothes Detective (as Martin Grace Ryan)
Ronald Clarke
— Man Outside Strip Club (Uncredited)
Ellis Dale
— Clergyman (Uncredited)
Ann Lancaster
— Drinking Club Hostess (Uncredited)
Ellen Mann
— Hudson's Secretary (Uncredited)
Stephen Martin
— Peter Maitland (Uncredited)
Reg Peters
— Private Agent (Uncredited)
Joseph Tregonino
— Caretaker (Uncredited)
Roy Beck
— Passerby (Uncredited)
Harry Fielder
— Man in Police Van (Uncredited)