Police deputy James Barrigan was a police officer in the Boston Police Department and the best-friend of Colin Sullivan. He serves as the hidden tertiary antagonist of The Departed. He was one of two moles working for mobster Frank Costello. He killed Billy Costigan and officer Brown to stop Colin Sullivan, Costello's other mole, from being arrested. When Barrigan was not looking, Sullivan shot and killed him to cover his tracks.


  • Both Barrigan and Sullivan are possibly a tribute to "Mafia Cops" Louis Eppolito and Stephen Caracappa, two Italian American NYPD officers who worked on behalf of the New York Mafia.

Barrigan gets betrayed by Sullivan and shot in the head.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.