[citation needed] Roberts has worked on some of the most popular British soap operas, including Channel 4's now-defunct Brookside as a scriptwriter (1999–2003), and as a story associate on ITV's Coronation Street in 1997.
In 1998 he worked as a script editor on ITV's other long-running soap, Emmerdale, moving across to write several episodes himself the following year.
He also wrote some Cracker novelisations for Virgin, and a gay erotic novel named The Velvet Web under the pseudonym Christopher Summerisle, the title of which also happened to be an episode of the Doctor Who serial The Keys of Marinus.
[2] On 25 December 2005, a special 'interactive' mini-episode of Doctor Who written by Roberts, Attack of the Graske, was broadcast, and can now be accessed on the BBC website (only available to UK Broadband Users).
He has written four full episodes of Doctor Who, "The Shakespeare Code" in 2007, "The Unicorn and the Wasp" in 2008, "The Lodger" in 2010 and "Closing Time" in 2011.
Roberts also co-wrote, with Russell T Davies, "Invasion of the Bane", the pilot episode of the Doctor Who spin-off series The Sarah Jane Adventures.
[8] Text from the book's expanded edition, I Can't Believe It's a Bigger and Better Updated Unofficial Simpsons Guide (2000), was subsequently published on the BBC website's Cult TV section.
[9] On 3 September 2017, Roberts posted on his Twitter account, "I [love] how trannies choose names like Munroe, Paris and Chelsea.