Jason King (TV series) the X-Men comics, the character of Jason Wyngarde (aka Mastermind) was partially inspired by Jason King and Peter Wyngarde. Mastermind had first appeared in the 1960s, but took on the appearance and identity of Jason Wyngarde in the build-up to the X-Men's first confrontation with the Hellfire Club in the late 1970s. Wyngarde had played the leader of another Hellfire club in "A Touch of Brimstone", an episode of the popular TV series "The Avengers", in which Diana Rigg appeared in a leather costume that Jean Grey adopted as the Hellfire Club's Black Queen. He is also one of the
David Jason panel games such as "The Impressionists" as well as his own series, "The Jason Explanation". In the early 1970s, he appeared in "Mostly Monkhouse". Jason appeared in variety shows in support of stars such as Dick Emery and his performances caught the attention of Ronnie Barker. Jason was recruited to appear in "Hark at Barker" (LWT, 1969), starring opposite Barker’s Lord Rustless, as Dithers, the hundred-year old gardener. There was also a sequel, "His Lordship Entertains" (1972) for the BBC. Jason played junior employee Granville in the first programme of the comedy anthology "Seven of One" (1973), called "Open All