Mark Gatiss is an English actor, comedian, screenwriter and novelist. He is known as a member of the comedy team The League of Gentlemen alongside Reece Shearsmith, Steve Pemberton and co-writer Jeremy Dyson, and has both written for and acted in the TV series Doctor Who and Sherlock, the latter of which he also co-created.

Steven Moffat is a Scottish television writer and producer. Moffat's first television work was the teen drama series Press Gang. His first sitcom, Joking Apart, was inspired by the breakdown of his first marriage; conversely, his later sitcom Coupling was based upon the development of his relationship with television producer Sue Vertue. In between the two relationship-centred shows, he wrote Chalk, a sitcom set in a comprehensive school inspired by his own experience as an English teacher.