Bart McCarthy is an American actor who played the role of Declan Brogan on the FX original series Sons of Anarchy. Making his debut on the episode "Fírinne" in the series' third season, Bart plays the role of a member of The True IRA council in Belfast. Playing a recurring role through the series' third, fourth, and sixth seasons, Bart was last seen in the Season 6 episode "Salvage".