Patrick Thomas O'Brien
1951-01-26 (1951)Wisconsin, USAActing
Biography
No biography available yet.
Known For
CSI: Crime Scene Investigation
TV • 2000
Baywatch
TV • 1989
Family Matters
TV • 1989
Sliders
TV • 1995
Monk
TV • 2002
The West Wing
TV • 1999
ER
TV • 1994
Married... with Children
TV • 1987
Married... with Children
TV • 1987
Gilmore Girls
TV • 2000
Malcolm in the Middle
TV • 2000
Lois & Clark: The New Adventures of Superman
TV • 1993
It's Always Sunny in Philadelphia
TV • 2005
Babylon 5
TV • 1994
Jake and the Fatman
TV • 1987
Night Court
TV • 1984
Home Improvement
TV • 1991
The Facts of Life
TV • 1979