Mark Boone Junior began his career in New York's stand-up scene alongside Steve Buscemi, later collaborating with him in films like "Trees Lounge" (1996). His filmography also includes roles in "Die Hard 2" (1990), "Se7en" (1995), and "30 Days of Night" (2007). However, it was his role as Bobby Munson in FX's "Sons of Anarchy" (2008–2014) and as Detective Flass in Christopher Nolan's "Batman Begins" (2005) that gave the star his highest profile. Boone also delivered memorable performances in "Memento" (2000) and "2 Fast 2 Furious" (2003). Iin 2025, he appears as the enigmatic Burly Man in "I'm Beginning to See the Light" (2025), a drama directed by Konstantin Khudyakov, exploring themes of grief and redemption.