David O'Hara
David Patrick O'Hara (born 9 July 1965) is a Scottish stage and character actor. A graduate of the Royal Central School of Speech and Drama in London, he is best known to audiences for his numerous supporting roles in high-profile films; including Irishman Stephen in Braveheart, dimwitted mobster Fitzy in The Departed, hitman Mr. X in Wanted, and Albert Runcorn in Harry Potter and the Deathly Hallows – Part 1. He portrayed Det. Danny 'Mac' McGregor on The District, and Henry Howard, Earl of Surrey on The Tudors. Description above from the Wikipedia article David O'Hara, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Filmography
Gotham
Marvel's Agents of S.H.I.E.L.D.
The Tudors
The District
Prime Suspect
Luther
Harry Potter and the Deathly Hallows: Part 1
Taggart
Trial & Retribution
The Departed
Braveheart
Wanted
Cowboys & Aliens
The Commander
Cold Pursuit
Hotel Rwanda
Contraband
Jesus
Doomsday
The Devil's Own
Horizon: An American Saga - Chapter 1
Chimera
Tristan & Isolde
Deus
No Image
Full Stretch
Club Soda
Horizon: An American Saga - Chapter 2
The Professor and the Madman
The Monocled Mutineer
The Match