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Patrick Thomas O'Brien

Patrick Thomas O'Brien

Acting

January 26, 1951

75 years old

Wisconsin, USA

70 Credits

Known For

CSI: Crime Scene Investigation

CSI: Crime Scene Investigation

2000

Monk

Monk

2002

Gilmore Girls

Gilmore Girls

2000

ER

1994

The West Wing

The West Wing

1999

Malcolm in the Middle

Malcolm in the Middle

2000

Married... with Children

Married... with Children

1987

Married... with Children

Married... with Children

1987

Babylon 5

Babylon 5

1994

It's Always Sunny in Philadelphia

It's Always Sunny in Philadelphia

2005

Sabrina, the Teenage Witch

Sabrina, the Teenage Witch

1996

Sabrina, the Teenage Witch

Sabrina, the Teenage Witch

1996

Baywatch

Baywatch

1989

Home Improvement

Home Improvement

1991

The Wonder Years

The Wonder Years

1988

Lois & Clark: The New Adventures of Superman

Lois & Clark: The New Adventures of Superman

1993

Night Court

Night Court

1984

Sliders

Sliders

1995

Family Matters

Family Matters

1989

Felicity

Felicity

1998

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