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John O'Brien

John O'Brien

Acting

Known For

57 Works

Grey's Anatomy

Grey's Anatomy

2005

tv

NCIS

NCIS

2003

tv

Criminal Minds

Criminal Minds

2005

tv

Shameless

Shameless

2011

tv

Friends

Friends

1994

tv

S.W.A.T.

S.W.A.T.

2017

tv

Desperate Housewives

Desperate Housewives

2004

tv

Two and a Half Men

Two and a Half Men

2003

tv

The X-Files

The X-Files

1993

tv

9-1-1

9-1-1

2018

tv

Monk

Monk

2002

tv

The West Wing

The West Wing

1999

tv