Actor · DirectorPaul O'BrienPaul O'Brien is an actor.SocialsIMDbKnown forPerson of InterestJudge Andrew MonahanShirleyDeanElementaryPaul FontinoStar Trek: VoyagerGeralLaw & OrderOfficer BarnesAngelCaptainLaw & Order: Criminal IntentPete WheelerERKicking PatientHenry's CrimeHead Parole Reviewer