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John O'Brien
0.5 Popularity
Known For
6.4
Principal
Cheaper by the Dozen
2022
4.0
Man in Suit
This Game's Called Murder
2021
7.3
Ernie Magnuson
Perry Mason
2020
7.5
James
Bob Hearts Abishola
2019
6.8
Cameron Scott
Dirty John
2018
7.8
Reverend Fahey
Light as a Feather
2018
8.2
Rod Billings
9-1-1
2018
8.1
Weber
S.W.A.T.
2017
4.4
Manager Mark
The Last Heist
2016
7.5
Mike
Superstore
2015
Credits
Cheaper by the Dozen
as Principal
2022
6.4
This Game's Called Murder
as Man in Suit
2021
4.0
Perry Mason
as Ernie Magnuson
2020
7.3
Bob Hearts Abishola
as James
2019
7.5
Dirty John
as Cameron Scott
2018
6.8
Light as a Feather
as Reverend Fahey
2018
7.8
9-1-1
as Rod Billings
2018
8.2
S.W.A.T.
as Weber
2017
8.1
The Last Heist
as Manager Mark
2016
4.4
Superstore
as Mike
2015
7.5
Young & Hungry
as Mr. Klepfer
2014
6.8
The Crazy Ones
as Larry
2013
6.1
Mom
as Waiter
2013
7.3
The Mindy Project
as Dr. Jones
2012
6.2
Don't Trust the B---- in Apartment 23
as Tom
2012
6.8
Being Flynn
as Airline Pilot
2012
6.1
Austin & Ally
as Mr. Neidermeyer
2011
7.8
Shameless
as Father Monroe
2011
8.2
Law & Order: LA
as Scott Hancox
2010
6.8
Better With You
as Florist
2010
6.5
Pretty Little Liars
as Principal Hackett
2010
8.0
Victorious
as Mr. Mooney
2010
8.2
Community
as Chaplin
2009
8.0
The Middleman
as Newscaster
2008
7.7
Chuck
as Older CIA Tech
2007
7.7
Mad Men
as Phil Kennedy
2007
8.1
Flicka
2006
6.9
Criminal Minds
as Dr. Meyer
2005
8.3
Grey's Anatomy
as Lab Tech Jeffrey
2005
8.2
Medium
as Hotel Clerk
2005
7.5
Desperate Housewives
as Dr. Wheeler
2004
7.9
NCIS
as Bruce
2003
7.6
Two and a Half Men
as Waiter
2003
7.5
Less than Perfect
as Executive
2002
6.9
What I Like About You
as Minister
2002
6.3
What I Like About You
as Dr. Thompson
2002
6.3
Monk
as Maitre'd
2002
7.9
Enough
as Front Desk Clerk
2002
6.7
Scrubs
as Man
2001
8.0
Malcolm in the Middle
as Sales Clerk
2000
8.5
The West Wing
as Reporter
1999
8.3
Will & Grace
as Salesperson
1998
6.9
Will & Grace
as Man
1998
6.9
Mom, Can I Keep Her?
as Nigel
1998
4.0
Ally McBeal
as Waiter
1997
6.6
Isle of Lesbos
as Farmer
1997
3.7
Clueless
as Zombie
1996
6.2
The Drew Carey Show
as Rick
1995
6.5
Friends
as Airline Employee
1994
8.4
The X-Files
as Missionary #2
1993
8.4