Wendo Kolosoy called ""Windsor"" (a homage to the Duke of Windsor and a play on the British Royalty theme of his band "Victoria Kin") which evolved into ""Wendo Sor"" and simply ""Sor"". He is most widely known as Wendo or Papa Wendo. In the mid-1940s, he began playing guitar around the capital Kinshasa (then Leopoldville) with his Cuban style band Victoria Bakolo Miziki. He had met Nicolas Jéronimidis, a Greek businessman, on a steamer returning to Leopoldville from Dakar in 1946, and in 1947 Jéronimidis agreed to record Wendo's music for his new Leopoldville based record label Ngoma. Imitating the bandleader Paul
A Town Called Mercy looking to give each episode of the series a distinct feel, showrunner Steven Moffat pitched the Wild West theme to writer Toby Whithouse, suggesting that the episode could be about a town terrorised by a robot. Moffat was keen on putting Matt Smith in a Western setting, who he called one of the last people one would expect to replace Clint Eastwood. Whithouse had previously written the "Doctor Who" episodes "School Reunion" (2006), "The Vampires of Venice" (2010), and "The God Complex" (2011). Moffat had been planning for the first five episodes of the series to have "movie marquee" themes.