William Duffy Filmography
- Actor (29 credits)
- Pitch (2016) Reporter #1
- Bosch (2014) Vault Attendant
- Walk & Talk: The West Wing Reunion (2012) Larry
- Walk & Talk - The West Wing Reunion: Behind the Scenes (2012) Larry
- Plan B (2012) Doctor Edson aka The Political Guest
- Here's the Kicker (2011) Sheriff Don Graham
- The Event (2010) Agent Romo
- The Big C (2010) Police Officer
- The Ascent (2009) Thomas Shaw
- The Onion Movie (2008) Man in Suit
- Carpoolers (2007)
- Journeyman (2007)
- Karla (2006) Detective Porter
- Studio 60 on the Sunset Strip (2006)
- Waist Deep (2006) Newscaster #2
- Sniper 3 (2004) Richard Addis
- Turks (1999)
- The West Wing (1999) Larry
- Buddy Faro (1998) Walter
- Blast from the Past (1998) Workman #1
- Trinity (1998)
- Double Tap (1997) Gas Man
- Tyson (1995) Jury Foreman
- The Invaders (1995) Robert Erskine, not listed in credits
- Betrayed by Love (1994) Paxton
- California Dreams (1992) Paul, not listed in credits
- Hearts Afire (1992) Doctor
- The Two Jakes (1990) Desk Sergeant
- She's Back (1989) Gang Member