Mark Gatiss

Mark Gatiss (/ˈɡeɪ.tɪs/ GAY-tis; born 17 October 1966) is an English actor, 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.