Ralph Thomas MC (born Ralph Philip Thomas 10 August 1915 — 17 March 2001) was an English film director, born in Hull. He is perhaps best known for directing the Doctor series of films.His brother, Gerald Thomas, was also a film director, probably best remembered for the Carry On... film series and his son is the Academy Award-winning film producer, Jeremy Thomas.He cast the actor James Robertson Justice in many of his films. He often worked with the producer Betty E. Box who was married to Carry On producer, Peter Rogers. He was a nephew of producer Victor Saville.
Gerald Thomas (10 December 1920 – 9 November 1993) was an English film director, born in Hull.