Patrick Thomas O'Brien

Personal Info

Known ForActing
GenderMale
BirthdayJanuary 26, 1951
Place of BirthWisconsin, USA
IMDb

Patrick Thomas O'Brien

Biography

No biography available.

Known For

CSI: Crime Scene Investigation

CSI: Crime Scene Investigation

2000
7.6
Gilmore Girls

Gilmore Girls

2000
7.9
ER

ER

1994
7.8
Monk

Monk

2002
8.0
It's Always Sunny in Philadelphia

It's Always Sunny in Philadelphia

2005
8.3
Malcolm in the Middle

Malcolm in the Middle

2000
8.5
The West Wing

The West Wing

1999
8.3
Married... with Children

Married... with Children

1987
7.7
Married... with Children

Married... with Children

1987
7.7
Sabrina, the Teenage Witch

Sabrina, the Teenage Witch

1996
7.8
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