Derek Royle "Confessions of a Sex Maniac" (1974). He appeared in a children's TV comedy series, "Hogg's Back" (1975) as Doctor Hogg, an eccentric general practitioner (GP); in 2016 this series has appeared on Talking Pictures TV. Royle acted with Wendy Richard and Pat Coombs over two series. (Hog's Back is an area in Surrey in Britain.) Royle played an unfortunate guest in a "Fawlty Towers" episode, "The Kipper and the Corpse", wherein he played the eponymous corpse. He also was the second actor to portray Monsieur Ernest LeClerc in the sixth series of "'Allo 'Allo!", and had a supporting role in
The Unicorn and the Wasp pseudohistorical episode "The Shakespeare Code". Roberts was given a fourth series episode to write after executive producer Russell T Davies reviewed Roberts' script for "The Shakespeare Code". Several months later, he received an email from the production team which said "Agatha Christie". The idea for a murder mystery featuring Agatha Christie came originally from producer Phil Collinson. Roberts, a self-confessed fan of Christie's works, made the episode into a comedy. Roberts based the episode on his favourite Christie works: "Crooked House", which focuses on secrets within an aristocratic society, and the 1982 film adaptation of "Evil Under the Sun". Speaking