Mark Gatiss is an English actor, comedian, screenwriter and novelist. Some of his notable works include writing for and acting in TV series Doctor Who and Sherlock, the latter of which he also cocreated. He is a member of the comedy team The League of Gentlemen alongside Reece Shearsmith, Steve Pemberton and cowriter Jeremy Dyson. He is also known for his role as Tycho Nestoris in HBO series Game of Thrones.
Gatiss was born in Sedgefield, County Durham, England, to Winifred Rose and Maurice Gatiss . He grew up opposite the Edwardian psychiatric hospital where his father worked. His family background was working class. His childhood passions included watching Doctor Who and Hammer Horror films on television, reading Sherlock Holmes and H.G. Wells, and collecting fossils. All of these interests have fuelled his creative work as an adult.