Mark Boone Junior (born Mark Heidrich on March 17, 1955 in Cincinnati, Ohio) is an actor who guest-starred on Law & Order and Law & Order: Special Victims Unit.

He is best known for his roles as Bobby Munson in the TV series Sons of Anarchy, Burt in the psychological thriller film Memento, and Detective Arnold Flass in the superhero film Batman Begins.


Law & Order

Law & Order: SVU

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