Derek Benfield: Derek Benfield. Actor: Lifeforce. Derek Benfield was born on 11 March 1926 in Bradford, West Yorkshire, England, UK. He was an actor and writer, known for Lifeforce (1985), Hetty Wainthropp Investigates (1996) and The Brothers (1972). He was married to Susan Lyall Grant. He died on 10 March 2009 in Esher, Surrey, England, UK.
Known For: Lifeforce (Physician), Hetty Wainthropp Investigates (Robert WainthroppRobert), The Brothers (Bill Riley), Return to the Lost Planet (Prof. Bergman)