Mark Strong (born Marco Giuseppe Salussolia; 5 August 1963) is an English actor. He is best known for his film roles such as Prince Septimus in Stardust (2007), Lord Henry Blackwood in Sherlock Holmes (2009), Frank D'Amico in Kick-Ass (2010), Jim Prideaux in Tinker Tailor Soldier Spy (2011), George in Zero Dark Thirty (2012), Major General Stewart Menzies in The Imitation Game (2014), Merlin in Kingsman: The Secret Service (2014) and Kingsman: The Golden Circle (2017), and Dr. Thaddeus Sivana in Shazam! (2019).
Strong was born Marco Giuseppe Salussolia on 5 August 1963 in the London district of Islington, the son of an Austrian mother and Italian father. His father left the family soon after his birth, and he was brought up by his mother while she worked as an au pair. He later said, "The home I grew up in was a flat in Myddelton Square in London's Islington, a beautiful Georgian square with a huge church in the middle. We moved around a lot when I was a kid. I remember flats in Walthamstow, Clapton, Stoke Newington, and Edmonton." He said in 2008 that he was inspired to become an actor as a child by watching French actor Alain Delon, stating, "I remember watching him in films and though I couldn't understand a word he was saying I remember thinking he looked great." However, in 2019, he clarified that he did not actually consider acting as a career option until he was in his late teens.