Jason King (TV series) Jason King (TV series) Jason King (1971–1972) is a British television series starring Peter Wyngarde as the titular character. It was produced by ITC Entertainment and had a single season of 26 episodes which were each one hour long, including commercial breaks. It was shown internationally as well as in the UK, and has been released on DVD in the UK, US, Australia and Germany. The series featured the further adventures of the title character who had first appeared in "Department S" (1969). In that series he was a dilettante dandy and author of a series of adventure novels, working
A Town Called Mercy called the Gunslinger. However, the Gunslinger is a product of experiments by Jex to win a civil war on his planet, and the Doctor is unsure of what is the right thing to do. Showrunner Steven Moffat pitched the Wild West theme to Whithouse when thinking of ways to give each episode a distinct theme. Whithouse further developed the theme, including classic Western tropes and a sympathetic villain. "A Town Called Mercy" and the previous episode "Dinosaurs on a Spaceship" were the first to enter production for the seventh series. Much of the episode was filmed in March 2012 in