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Birthday
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Place of Birth
We don't have a biography for John O'Brien.
Grey's Anatomy
NCIS
Criminal Minds
Shameless
Friends
Two and a Half Men
S.W.A.T.
Monk
2022
Cheaper by the Dozen
as Principal
2021
This Game's Called Murder
as Man in Suit
2016
The Last Heist
as Manager Mark
2012
Being Flynn
as Airline Pilot
2002
Enough
as Front Desk Clerk
1998
Mom, Can I Keep Her?
as Nigel
1997
Isle of Lesbos
as Farmer
