William Duffy
Actor · Executive Producer
Active 1965–present
William Duffy is an actor.
Filmography
The Mentalist (2008) — TSA Agent #2Criminal Minds (2005) — Dr. LarsonIt's Always Sunny in Philadelphia (2005) — Hedge Fund GuyNCIS (2003) — Harris CobbHeroes (2006) — ER DoctorThe O.C. (2003) — (voice)The West Wing (1999) — StafferBosch (2015) — Vault AttendantBeverly Hills, 90210 (1990) — DoormanBlast from the Past (1999) — Workman #1Law & Order (1990) — CSU TechnicianScandal (2012) — Ralph GreenwaldParenthood (2010) — Mr. CarlsonWaist Deep (2006) — Newscaster #2The Two Jakes (1990) — Desk SergeantSniper 3 (2004) — Richard AddisA West Wing Special to Benefit When We All Vote (2020) — LarryKarla (2006) — Detective PorterDeath Game (1977) — Executive ProducerThe Division (2001) — Commander JacksonBrainstorm (1965) — Orderly (uncredited)Carpoolers (2007)Hearts Afire (1992) — DoctorLoving (1970) — Jay