John O'Brien
59
Acting Credits
Acting
TV
Grey's Anatomy
as Lab Tech Jeffrey
2005
TV
Friends
as Airline Employee
1994
TV
Malcolm in the Middle
as Sales Clerk
2000
TV
Criminal Minds
as Dr. Meyer
2005
TV
Two and a Half Men
as Waiter
2003
TV
The X-Files
as Missionary #2
1993
TV
Shameless
as Father Monroe
2011
TV
Pretty Little Liars
as Principal Hackett
2010
TV
9-1-1
as Rod Billings
2018
TV
NCIS
as Bruce
2003
TV
Desperate Housewives
as Dr. Wheeler
2004
TV
Community
as Chaplin
2009
TV
Victorious
as Mr. Mooney
2010
TV
S.W.A.T.
as Weber
2017
TV
Mad Men
as Phil Kennedy
2007
TV
Monk
as Maitre'd
2002
Movie
Enough
as Front Desk Clerk
2002
TV
Chuck
as Older CIA Tech
2007
TV
Superstore
as Mike
2015
TV
Mom
as Waiter
2013
TV
The West Wing
as Reporter
1999
TV
Medium
as Hotel Clerk
2005
TV
Will & Grace
as Salesperson
1998
TV
Will & Grace
as Man
1998