Aidan Murphy, better known as Aidan Gillen, is an Irish actor. He is known for his roles as Stuart Alan Jones in Queer as Folk; Tommy Carcetti in The Wire; John Boy in Love/Hate; Petyr "Littlefinger" Baelish in Game of Thrones; Aberama Gold in Peaky Blinders; Milo Sunter in Mayor of Kingstown; and Frank Kinsella in Kin. From Wikipedia