This episode, which centers around a reunion, fittingly features Mark Gatiss who has known the show creators Steve Pemberton and Reece Shearsmith since acting school. They have collaborated many times in their careers.
Darren (Steve Pemberton) talks about how he enjoyed Game of Thrones, but found the ending disappointing. An earlier episode (Season 6 Episode 2 - 'Simon Says') features a show runner who wrote a poor finale to a fantasy epic TV show. 'Simon Says' was partly inspired by Game of Thrones.
Directed by Al Campbell, known as comedy character Barry Shitpeas in Screen Wipe, which also stars Diane Morgan as Philomena Cunk.