Movies (Acting Roles)
Sorted by Release DateCheaper by the Dozen
John O'Brien was ? in Cheaper by the Dozen as 'Principal'.Movie Released: Fri, Mar 18 2022
This Game's Called Murder
John O'Brien was ? in This Game's Called Murder as 'Man in Suit'.Movie Released: Fri, Dec 03 2021
The Last Heist
John O'Brien was ? in The Last Heist as 'Manager Mark'.Movie Released: Fri, Jun 17 2016
Mom, Can I Keep Her?
John O'Brien was ? in Mom, Can I Keep Her? as 'Nigel'.Movie Released: Wed, Jun 10 1998
TV Shows (Acting Roles)
Sorted by Release DateAges in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages
Perry Mason
John O'Brien was ? in Perry Mason as 'Ernie Magnuson'.TV Show Released: First Air Date
Sun, Jun 21 2020
Sun, Jun 21 2020
Bob Hearts Abishola
John O'Brien was ? in Bob Hearts Abishola as 'James'.TV Show Released: First Air Date
Mon, Sep 23 2019
Mon, Sep 23 2019
Dirty John
John O'Brien was ? in Dirty John as 'Cameron Scott'.TV Show Released: First Air Date
Sun, Nov 25 2018
Sun, Nov 25 2018
Light as a Feather
John O'Brien was ? in Light as a Feather as 'Reverend Fahey'.TV Show Released: First Air Date
Fri, Oct 12 2018
Fri, Oct 12 2018
Superstore
John O'Brien was ? in Superstore as 'Mike'.TV Show Released: First Air Date
Mon, Nov 30 2015
Mon, Nov 30 2015
Young & Hungry
John O'Brien was ? in Young & Hungry as 'Mr. Klepfer'.TV Show Released: First Air Date
Wed, Jun 25 2014
Wed, Jun 25 2014
The Crazy Ones
John O'Brien was ? in The Crazy Ones as 'Larry'.TV Show Released: First Air Date
Thu, Sep 26 2013
Thu, Sep 26 2013
The Mindy Project
John O'Brien was ? in The Mindy Project as 'Dr. Jones'.TV Show Released: First Air Date
Tue, Sep 25 2012
Tue, Sep 25 2012
Don't Trust the B---- in Apartment 23
John O'Brien was ? in Don't Trust the B---- in Apartment 23 as 'Tom'.TV Show Released: First Air Date
Wed, Apr 11 2012
Wed, Apr 11 2012
Austin & Ally
John O'Brien was ? in Austin & Ally as 'Mr. Neidermeyer'.TV Show Released: First Air Date
Fri, Dec 02 2011
Fri, Dec 02 2011
Shameless
John O'Brien was ? in Shameless as 'Father Monroe'.TV Show Released: First Air Date
Sun, Jan 09 2011
Sun, Jan 09 2011
Law & Order: LA
John O'Brien was ? in Law & Order: LA as 'Scott Hancox'.TV Show Released: First Air Date
Wed, Sep 29 2010
Wed, Sep 29 2010
Better With You
John O'Brien was ? in Better With You as 'Florist'.TV Show Released: First Air Date
Wed, Sep 22 2010
Wed, Sep 22 2010
Pretty Little Liars
John O'Brien was ? in Pretty Little Liars as 'Principal Hackett'.TV Show Released: First Air Date
Tue, Jun 08 2010
Tue, Jun 08 2010
Victorious
John O'Brien was ? in Victorious as 'Mr. Mooney'.TV Show Released: First Air Date
Sat, Mar 27 2010
Sat, Mar 27 2010
Community
John O'Brien was ? in Community as 'Chaplin'.TV Show Released: First Air Date
Thu, Sep 17 2009
Thu, Sep 17 2009
The Middleman
John O'Brien was ? in The Middleman as 'Newscaster'.TV Show Released: First Air Date
Mon, Jun 16 2008
Mon, Jun 16 2008
Chuck
John O'Brien was ? in Chuck as 'Older CIA Tech'.TV Show Released: First Air Date
Mon, Sep 24 2007
Mon, Sep 24 2007
Mad Men
John O'Brien was ? in Mad Men as 'Phil Kennedy'.TV Show Released: First Air Date
Thu, Jul 19 2007
Thu, Jul 19 2007
Criminal Minds
John O'Brien was ? in Criminal Minds as 'Dr. Meyer'.TV Show Released: First Air Date
Thu, Sep 22 2005
Thu, Sep 22 2005
Grey's Anatomy
John O'Brien was ? in Grey's Anatomy as 'Lab Tech Jeffrey'.TV Show Released: First Air Date
Sun, Mar 27 2005
Sun, Mar 27 2005
Medium
John O'Brien was ? in Medium as 'Hotel Clerk'.TV Show Released: First Air Date
Mon, Jan 03 2005
Mon, Jan 03 2005
Desperate Housewives
John O'Brien was ? in Desperate Housewives as 'Dr. Wheeler'.TV Show Released: First Air Date
Sun, Oct 03 2004
Sun, Oct 03 2004
Two and a Half Men
John O'Brien was ? in Two and a Half Men as 'Waiter'.TV Show Released: First Air Date
Mon, Sep 22 2003
Mon, Sep 22 2003
Less than Perfect
John O'Brien was ? in Less than Perfect as 'Executive'.TV Show Released: First Air Date
Tue, Oct 01 2002
Tue, Oct 01 2002
What I Like About You
John O'Brien was ? in What I Like About You as 'Dr. Thompson, Minister'.TV Show Released: First Air Date
Fri, Sep 20 2002
Fri, Sep 20 2002
Malcolm in the Middle
John O'Brien was ? in Malcolm in the Middle as 'Sales Clerk'.TV Show Released: First Air Date
Sun, Jan 09 2000
Sun, Jan 09 2000
The West Wing
John O'Brien was ? in The West Wing as 'Reporter'.TV Show Released: First Air Date
Wed, Sep 22 1999
Wed, Sep 22 1999
Will & Grace
John O'Brien was ? in Will & Grace as 'Salesperson, Man'.TV Show Released: First Air Date
Mon, Sep 21 1998
Mon, Sep 21 1998
The Drew Carey Show
John O'Brien was ? in The Drew Carey Show as 'Rick'.TV Show Released: First Air Date
Wed, Sep 13 1995
Wed, Sep 13 1995
Friends
John O'Brien was ? in Friends as 'Airline Employee'.TV Show Released: First Air Date
Thu, Sep 22 1994
Thu, Sep 22 1994
The X-Files
John O'Brien was ? in The X-Files as 'Missionary #2'.TV Show Released: First Air Date
Fri, Sep 10 1993
Fri, Sep 10 1993