The Silent Twins (1986) — Cast
Cast
| Ruddy L. Davis | Gibbons |
| Margarite Richards | Guider |
| Anthony Morse | Diehl |
| Beverley Martin | Gibbons |
| Annest Williams | Whiteley |
| Anwen Williams | Teacher |
| Gwenno Dafydd | Warden |
| Ted Maynard | Kennedy Launch |
| Clyde Pollitt | Parquet Courts |
| Richard Pescud | Psychiatrist |
| Peter Penry-Jones | Evans |
| Sharon I. Parker | June |
| Jillian Tony | Jennifer Parker |
| Juliette Tony | June |
| Ena Cabayo | Gibbons |
| Ifan Huw Dafydd | Thomas |
| Shirley I. Parker | Gibbons |
| J.O. Roberts | Davies |
| Natasha Dixon | Rosie |
| Madeline Adams | Cathy Bowman |
| Tony Robinson | Nigel Hamilton |
| David Blackburn | Kennedy Launch |
| Di Botcher | Kyle |
| Gareth Gwyn-Jones | Rees Mathry |
| Sandra Voe | Helen |
| John Savident | Bernard Judge |
| Alun ap Brinley | Michael |
| Marcus D'Amico | Kennedy Launch |
Crew
| Jon Amiel | Director |
| Marjorie Wallace | Writer |