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John O'Brien
Actor · 39 credits
All Work
Hacks
2021
Duncan
Perry Mason
2020
Ernie Magnuson
9-1-1
2018
Rod Billings
S.W.A.T.
2017
Weber
Superstore
2015
Mike
Transparent
2014
Professor
Young & Hungry
2014
Mr. Klepfer
Mom
2013
Waiter
The Mindy Project
2012
Dr. Jones
Austin & Ally
2011
Mr. Neidermeyer
Workaholics
2011
Doctor
Shameless
2011
Father Monroe
Law & Order: LA
2010
Scott Hancox
Pretty Little Liars
2010
Principal Hackett
Victorious
2010
Mr. Mooney
Community
2009
Chaplin
Chuck
2007
Older CIA Tech
Mad Men
2007
Phil Kennedy
Ugly Betty
2006
Joe of Happy Homes
8Criminal Minds
2005
Dr. Meyer
Grey's Anatomy
2005
Lab Tech Jeffrey
Medium
2005
Hotel Clerk
Desperate Housewives
2004
Dr. Wheeler
Boston Legal
2004
Clerk #2
NCIS
2003
Bruce
Two and a Half Men
2003
Waiter
What I Like About You
2002
Dr. Thompson
Monk
2002
Maitre'd
Scrubs
2001
Man
Malcolm in the Middle
2000
Sales Clerk
The West Wing
1999
Reporter
Will & Grace
1998
Salesperson
Ally McBeal
1997
Waiter
The Practice
1997
Foreman
9.8Friends
1994
Airline Employee
The X-Files
1993
Missionary #2