William Duffy is an actor.

| Title | ||||||
|---|---|---|---|---|---|---|
The Two Jakes | Desk Sergeant | 6 | 1990-08-10 | 2.377 | ||
Karla | Detective Porter | 5.4 | 2006-01-20 | 2.5427 | ||
Waist Deep | Newscaster #2 | 6.6 | 2006-06-23 | 1.9083 | ||
Sniper 3 | Richard Addis | 5.475 | 2004-08-03 | 3.9926 | ||
Blast from the Past | Workman #1 | 6.8 | 1999-02-12 | 10.1802 | ||
The Ascent | Thomas Shaw | 3.2 | 2010-01-01 | 0.6511 | ||
Brainstorm | Orderly (uncredited) | 6.1 | 1965-05-05 | 1.044 | ||
Betrayed by Love | Paxton | 6.5 | 1994-01-17 | 0.7501 | ||
A West Wing Special to Benefit When We All Vote | Larry | 7.9 | 2020-10-15 | 1.3898 | ||
Double Tap | Gas Man | 5.1 | 1997-09-05 | 2.4054 |