Mark Strong (born Marco Giuseppe Salussolia; 5 August 1963) is an English actor. He is known for his roles in movies such as Stardust, RocknRolla, Body of Lies, Sherlock Holmes, Kick-Ass, Tinker Tailor Soldier Spy, Zero Dark Thirty, The Imitation Game, Kingsman: The Secret Service, and its sequel Kingsman: The Golden Circle.
In 2011, he played Thaal Sinestro, Green Lantern's mentor, in the superhero movie Green Lantern.
In 2018, it was announced that Strong will portray the villain Doctor Thaddeus Sivana in the DC Extended Universe superhero movie Shazam! (2019).