John O'Brien
Known For
Acting
Born
Biography
We don't have a biography for John O'Brien yet.
Most Known For
Grey's Anatomy
as Lab Tech Jeffrey
NCIS
as Bruce
Criminal Minds
as Dr. Meyer
Shameless
as Father Monroe
Friends
as Airline Employee
The X-Files
as Missionary #2
Two and a Half Men
as Waiter
S.W.A.T.
as Weber
Desperate Housewives
as Dr. Wheeler
9-1-1
as Rod Billings
The West Wing
as Reporter
Monk
as Maitre'd
Mad Men
as Phil Kennedy
Pretty Little Liars
as Principal Hackett
Community
as Chaplin
Mom
as Waiter
Malcolm in the Middle
as Sales Clerk
Scrubs
as Man
Medium
as Hotel Clerk
Superstore
as Mike