Acting
John O'Brien
Known for
Highlights
Friends
1994 · Series · Airline Employee
Grey's Anatomy
2005 · Series · Lab Tech Jeffrey
Malcolm in the Middle
2000 · Series · Sales Clerk
Criminal Minds
2005 · Series · Dr. Meyer
The X-Files
1993 · Series · Missionary #2
Shameless
2011 · Series · Father Monroe
Filmography
Movies
10 films
Good Grief
2024 · Film · Dan
Cheaper by the Dozen
2022 · Film · Principal
This Game's Called Murder
2021 · Film · Man in Suit
The Last Heist
2016 · Film · Manager Mark
Mortdecai
2015 · Film · Butler
Being Flynn
2012 · Film · Airline Pilot
Flicka
2006 · Film · Mr. Masterson
Enough
2002 · Film · Front Desk Clerk
Mom, Can I Keep Her?
1998 · Film · Nigel
Isle of Lesbos
1997 · Film · Farmer
Filmography
Series
48 shows
Hacks
2021 · Series · Duncan
Perry Mason
2020 · Series · Ernie Magnuson
Bob Hearts Abishola
2019 · Series · James
Dirty John
2018 · Series · Cameron Scott
Light as a Feather
2018 · Series · Reverend Fahey
9-1-1
2018 · Series · Rod Billings
S.W.A.T.
2017 · Series · Weber
Superstore
2015 · Series · Mike
Transparent
2014 · Series · Professor
Young & Hungry
2014 · Series · Mr. Klepfer
The Crazy Ones
2013 · Series · Larry
Mom
2013 · Series · Waiter
The Mindy Project
2012 · Series · Dr. Jones
Don't Trust the B---- in Apartment 23
2012 · Series · Tom
Austin & Ally
2011 · Series · Mr. Neidermeyer
Workaholics
2011 · Series · Doctor
Shameless
2011 · Series · Father Monroe
Law & Order: LA
2010 · Series · Scott Hancox
Better With You
2010 · Series · Florist
Pretty Little Liars
2010 · Series · Principal Hackett
Victorious
2010 · Series · Mr. Mooney
Community
2009 · Series · Chaplin
Eleventh Hour
2008 · Series · Manager
The Middleman
2008 · Series · Newscaster
Chuck
2007 · Series · Older CIA Tech
Mad Men
2007 · Series · Phil Kennedy
Ugly Betty
2006 · Series · Joe of Happy Homes
Criminal Minds
2005 · Series · Dr. Meyer
Grey's Anatomy
2005 · Series · Lab Tech Jeffrey
Medium
2005 · Series · Hotel Clerk
Desperate Housewives
2004 · Series · Dr. Wheeler
Boston Legal
2004 · Series · Clerk #2
NCIS
2003 · Series · Bruce
Two and a Half Men
2003 · Series · Waiter
Less than Perfect
2002 · Series · Executive
What I Like About You
2002 · Series · Dr. Thompson
Monk
2002 · Series · Maitre'd
Scrubs
2001 · Series · Man
Malcolm in the Middle
2000 · Series · Sales Clerk
BeastMaster
1999 · Series · Village leader
The West Wing
1999 · Series · Reporter
Will & Grace
1998 · Series · Salesperson
Ally McBeal
1997 · Series · Waiter
The Practice
1997 · Series · Foreman
Clueless
1996 · Series · Zombie
The Drew Carey Show
1995 · Series · Rick
Friends
1994 · Series · Airline Employee
The X-Files
1993 · Series · Missionary #2
