Doomwatch By the Pricking of My Thumbs... (1970–2016) HD online
Category: TV Episode
By the Pricking of My Thumbs...
Robin Chapman,Gerry Davis
Sixteen-year-old Stephen Franklin stages a prank while in a school science class, but the joke goes wrong, and a classmate suffers horrible facial injuries. When Stephen is then expelled from the comprehensive school, his father, journalist Oscar Franklin, inquires as to why, and how does a scientist named Ensor know of Stephen's genetic past? Stephen suffers from an abnormality of his hands, and he has an obscure genetic defect: an extra Y chromosome. Doomwatch become involved when it seems that there may be a genetic explanation for violent and unpredictable behaviour.
|Episode cast overview, first billed only:|
| John Paul || - || Dr. Spencer Quist |
| Simon Oates || - || Dr. John Ridge |
| John Nolan || - || Geoff Hardcastle |
| Jean Trend || - || Dr. Fay Chantry |
| Vivien Sherrard || - || Barbara Mason |
| Colin Jeavons || - || Botting |
| Olaf Pooley || - || Dr. Ensor |
| Barry Stokes || - || Stephen Franklin |
| Sally Thomsett || - || Judy Franklin |
| Martin Howells || - || Gerald Jenkins |
| David Janson || - || Arnold McPherson |
| Robert Yetzes || - || Painton |
| David Jarrett || - || Tom Avery |
| Patrick Milner || - || Airport Policeman |
| Julie May || - || Woman Shopper |
Sally Thomsett, then aged 20, plays a 13 year old schoolgirl. The episode was made in November 1970, the same year that she made The Railway Children (1970) playing an 11 year old schoolgirl.