 | Kim Stanley als Myra |
 | Richard Attenborough als Bill |
 | Margaret Lacey als Woman at first Seance |
 | Marie Burke als Woman at first Seance |
 | Maria Kazan als Woman at first Seance |
| Lionel Gamlin als Man at Seances |
| Marian Spencer als Mrs. Wintry |
 | Godfrey James als Mrs. Clayton's Chauffeur |
| Judith Donner als Amanda |
 | Ronald Hines als Policeman outside Clayton's |
| Hajni Biro als Maid at Clayton's |
 | Mark Eden als Mr. Clayton |
 | Nanette Newman als Mrs. Clayton |
| Diana Lambert als Mr. Clayton's Secretary |
| Frank Singuineau als Bus Conductor |
 | Gerald Sim als Beedle |
| Stanley Morgan als Man in Trilby |
 | Maggie Rennie als Woman at Second Seance |
 | Michael Lees als Plain Clothes Policeman |
 | Patrick Magee als Walsh |
| Bryan Forbes | Producer |
| Bryan Forbes | Director |
| John Barry | Original Music Composer |
| Bryan Forbes | Screenplay |
| Gerry Turpin | Director of Photography |
| Richard Attenborough | Producer |
| Derek York | Editor |
| Mark McShane | Novel |
| Ray Simm | Art Direction |
| Jack Rix | Associate Producer |
| Stuart Freeborn | Makeup Artist |
| Bill Daniels | Sound Recordist |
| Christopher Dryhurst | Assistant Director |
| Penny Daniels | Continuity |
| Gerry Anstiss | Assistant Camera |
| Peter James | Set Dresser |
| Laurel Staffell | Wardrobe Supervisor |
| David Harcourt | Camera Operator |
| George Fisher | Sound Editor |
| Gus Lloyd | Sound Assistant |
| Barbara Ritchie | Hairdresser |
| Ted Lockhart | Grip |
| Jock Lyall | Construction Manager |
| John Barry | Conductor |
| George Courtney Ward | Still Photographer |
| Ann Skinner | Production Secretary |
| Alan Roderick-Jones | Set Dresser |
| Dickie Bamber | Dressing Prop |
| Simon Relph | Assistant Director |
| Diana Hawkins | Publicist |
