Cast & crew
Third Party (1972)
Directed by Henri Safran Written by Bernice Rubens
Cast
| Angela Thorne | Sybil |
| John Neville | Andrew Bogomil |
| Helen Shingler | Jackie Elliot |
| Anna Massey | Rosemary Woodhouse |
| Jack Watling | Tony |
| Robert Cartland | Walter Parks Thatcher |
| Hilary Hardiman | Mary Bennett |
| Peter Penry-Jones | Martin |
| Norman Shelley | Male Guest |
| Mary Ann Severne | Strawberry Alice |
| Ann Sears | Male Guest |
| Roy Barraclough | Male Guest |
| Peter Hutchins | Male Guest |
| Helen Dorward | Male Guest |
Crew
| Henri Safran | Director |
| Henri Safran | Producer |
| Bernice Rubens | Writer |