Mark Gatiss is an English actor, screenwriter, director, producer, and novelist whose career spans television, film, and theatre. Born in 1966, Gatiss first achieved widespread recognition as a co-creator, co-writer, and star of the dark comedy series The League of Gentlemen (1999–2002). This early success established his reputation for blending macabre humor with eccentric character studies, a thematic thread that would run through much of his subsequent work.
Gatiss is perhaps best known to international audiences for his collaborative work with Steven Moffat. Together, they co-created the critically acclaimed BBC series Sherlock (2010–2017), in which Gatiss also portrayed the protagonist's brother, Mycroft Holmes. The duo later adapted the classic gothic horror novel Dracula into a 2020 miniseries. Additionally, Gatiss has been a prominent writer for the long-running science fiction series Doctor Who, contributing several episodes to the modern revival.
Beyond his screenwriting and television production, Gatiss has maintained a highly successful acting career on both stage and screen. He has appeared in major films such as The Favourite, The Father, and Mission: Impossible – Dead Reckoning Part One. On stage, his performances have earned him significant acclaim, including two Laurence Olivier Awards—one for his role in Three Days in the Country and another for his portrayal of Sir John Gielgud in The Motive and the Cue.
