Cast & crew
Triangle · Season 3
Nobody is recorded for this season on its own, so this is the whole show's cast.
Cast
| Larry Lamb | Matt Taylor |
| Michael Craig | Captain John Anderson |
| George Baker | David West |
| Sandra Payne | Christine Harris |
| Sandra Dickinson | Penny Warrender |
| Joan Greenwood | Judith Harper |
| Dawn Addams | Mrs. Landers |
| Scott Fredericks | Tom Kelly |
| Paul Jerricho | Charles Woodhouse |
| Penelope Horner | Sarah Hallam |
| Jonathan Scott-Taylor | Ted Anderson |
| Michael Elwyn | Roger Powell |
Crew
| Bill Sellars | Producer |