Mark Strong is a British actor best known for his film roles such as Prince Septimus in
Stardust (2007), Archibald in
RocknRolla (2008), Lord Henry Blackwood in
Sherlock Holmes (2009), Frank D'Amico in
Kick-Ass (2010), Jim Prideaux in
Tinker Tailor Soldier Spy (2011), Sinestro in
Green Lantern (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), Dr. Thaddeus Sivana in
Shazam! (2019) and
Shazam! Fury of the Gods (2023), and John in
Cruella (2021).