Cast & crew
Three's One (1973)
Directed by Alastair Reid Written by Penelope Mortimer
Cast
| Hywel Bennett | Tony |
| Caroline Mortimer | Maggie |
| Fulton Mackay | Dr Chaleck |
| Patricia Lawrence | Mrs. Dunn |
| Paul Hand | Marks' Son |
| Peter Marshall | Marks' Son |
Crew
| Graeme MacDonald | Producer |
| Alastair Reid | Director |
| Penelope Mortimer | Writer |