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Patrick Thomas O'Brien
Known For
Acting
Born
January 26, 1951
(75 years old)
Birthplace
Wisconsin, USA
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Patrick Thomas O'Brien's Filmography
Series
7.6
CSI: Crime Scene Investigation
2000
CSI: Crime Scene Investigation
2000
7.6
Series
7.9
Monk
2002
Monk
2002
7.9
Series
8.3
It's Always Sunny in Philadelphia
2005
It's Always Sunny in Philadelphia
2005
8.3
Series
8.2
The West Wing
1999
The West Wing
1999
8.2
Series
7.9
Gilmore Girls
2000
Gilmore Girls
2000
7.9
Series
7.8
ER
1994
ER
1994
7.8
Series
7.7
Married... with Children
1987
Married... with Children
1987
7.7
Series
7.7
Married... with Children
1987
Married... with Children
1987
7.7
Series
8.5
Malcolm in the Middle
2000
Malcolm in the Middle
2000
8.5
Series
7.8
Sabrina, the Teenage Witch
1996
Sabrina, the Teenage Witch
1996
7.8
Series
7.8
Sabrina, the Teenage Witch
1996
Sabrina, the Teenage Witch
1996
7.8
Series
6.0
Baywatch
1989
Baywatch
1989
6.0
Series
8.0
Babylon 5
1994
Babylon 5
1994
8.0
Series
6.8
Family Matters
1989
Family Matters
1989
6.8
Series
7.4
Home Improvement
1991
Home Improvement
1991
7.4
Series
8.3
The Wonder Years
1988
The Wonder Years
1988
8.3
Series
7.6
Sliders
1995
Sliders
1995
7.6
Series
7.3
Night Court
1984
Night Court
1984
7.3
Series
7.7
Step by Step
1991
Step by Step
1991
7.7
Series
6.9
Lois & Clark: The New Adventures of Superman
1993
Lois & Clark: The New Adventures of Superman
1993
6.9