 | Derek Jarvis |
 | Kate Manning |
 | Lord Lucan |
 | Veronica Lucan |
 | John Aspinall |
 | Dominic Elwes |
 | Ian Maxwell Scott |
Maloney | |
 | Lady Osborne |
 | Greville Howard |
 | Shand Kydd |
 | Sir Edward Manning (as Rowland Davis) |
Lady Manning | |
Young Kate Manning | |
Sandra Rivett (as Liz Kuti) | |
 | Yanis Vassiliou |
 | Mrs. Jarvis |
Frances Bingham | |
Camilla Bingham | |
George Bingham | |
Policeman Beddick | |
Sandra Rivett's Child | |
Male Guest | |
 | Female Guest |
Tall Policeman | |
John Hankins | |
Blonde | |
 | Selim Zelkha |
Linkman | |
 | Landlord (as Brian De Salvo) |
 | Susan Maxwell-Scott |
Dowager Lucan | |
Redhaired Guest | |
Aspinall's Maid | |
Gerring | |
 | Coroner |
 | Lawyer |
 | Pathologist (as Karl O'Neil) |
Fingerprint Expert | |
Dr. Margaret Pereira | |
 | Playboy Cashier (as Vinny Walsh) |
Kilgore | |
 | Dogtrack Caretaker |
Sandra's Father | |
Maloney's Dad | |
Man outside phonebox | |
Policewoman | |
Maloney's Woman | |
Mrs. Seymour Cooke | |
Barman |