William Duffy

William Duffy is an actor, known for The West Wing (1999), It's Always Sunny in Philadelphia (2005) and Scandal (2012).

William Duffy's FILMOGRAPHY - Page 3

All as Actor (145)

Sniper 3

Its Always Sunny in Philadelphia - Season 5

The Onion Movie

Beverly Hills 90210 - Season 2

ER - Season 8

NCIS - Season 18

ER - Season 13

Its Always Sunny in Philadelphia - Season 7

NCIS - Season 1

Bosch - Season 4

ER - Season 7

ER - Season 15

Heroes - Season 3

Parenthood - Season 4

Heroes - Season 2

Beverly Hills 90210 - Season 5

Its Always Sunny in Philadelphia - Season 2

The Mentalist - Season 5

Pitch - Season 1

The West Wing - Season 4

California Dreams - Season 4

Third Watch - Season 5

Its Always Sunny in Philadelphia - Season 15

American Dreams - Season 3

Studio 60 on the Sunset Strip - Season 1

ER - Season 6

William Duffy'S roles