Stephen Dillon (born "Stephen John Dillane" on 27th March 1957 in London) appeared in Coronation Street in May 1986 as Mark Siddall, a customer of Tilsley's Garage.
Best known for his work under his birth name, he began his career as a journalist but took up acting at the Bristol Old Vic Theatre School at the age of 25.
His other television work includes Remington Steele, Bulman, The Secret Garden, Christabel, Screen Two, Boon, The Ruth rendell Mysteries, Soldier Soldier, The Rector's Wife, The Cazalets, Agatha Christie's Marple, Hunted, Secret State, The Tunnel and The Crown but he is best known for playing Stannis Baratheon in Game of Thrones.
His film work includes Hamlet, Welcome to Sarajevo, Firelight, The Darkest Light, The Hours, Haven, Nine Lives, the Goal! trilogy and Spy Game.
He has an distinguished theatre career which includes winning a Tony award for The Real Thing in 2000. His other work on the stage includes roles in The Beaux' Stratagem, Angels in America, Endgame, Uncle Vanya, The Coast of Utopia, a one-man version of Macbeth, Shipwreck, The Voyage and The Master Builder.
His son, Frank Dillaine, appeared in Harry Potter and the Half-Blood Prince.