John O'Brien
Actor| Gender | Male |
Known for
Lab Tech Jeffrey
Mar 27, 2005
Friends
8.4
Airline Employee
Sep 22, 1994
Sales Clerk
Jan 9, 2000
Dr. Meyer
Sep 22, 2005
Waiter
Sep 22, 2003
The X-Files
8.4
Missionary #2
Sep 10, 1993
Shameless
8.2
Father Monroe
Jan 9, 2011
Principal Hackett
Jun 8, 2010
9-1-1
8.2
Rod Billings
Jan 3, 2018
NCIS
7.6
Bruce
Sep 23, 2003
Dr. Wheeler
Oct 3, 2004
Man
Oct 2, 2001
Chaplin
Sep 17, 2009
Victorious
8.2
Mr. Mooney
Mar 27, 2010
S.W.A.T.
8.1
Weber
Nov 2, 2017
Mad Men
8.1
Phil Kennedy
Jul 19, 2007
Enough
6.7
Front Desk Clerk
May 21, 2002
Monk
7.9
Maitre'd
Jul 12, 2002
Chuck
7.7
Older CIA Tech
Sep 24, 2007
Superstore
7.5
Mike
Nov 30, 2015
Lab Tech Jeffrey
Mar 27, 2005
Friends
8.4
Airline Employee
Sep 22, 1994
Sales Clerk
Jan 9, 2000
Dr. Meyer
Sep 22, 2005
Waiter
Sep 22, 2003
The X-Files
8.4
Missionary #2
Sep 10, 1993
Acting
Participated in 7 movies, 39 TV series
