Aidan Gillen (; born Aidan Murphy; 24 April 1968) is an Irish actor. He is best known for portraying CIA operative Bill Wilson in The Dark Knight Rises, Petyr "Littlefinger" Baelish in the HBO series Game of Thrones, Stuart Alan Jones in the Channel 4 series Queer as Folk, John Boy in the RTÉ Television series Love/Hate, and Tommy Carcetti in the HBO series The Wire.