Acting
Marcus Giamatti
New Haven, Connecticut, USABorn 1961 (64 years old)
Marcus Giamatti is an American actor, best known for being a regular member of the cast of the CBS drama series Judging Amy. He is the younger brother of actor Paul Giamatti.
15
Films
37
TV Shows
Known For
52 Credits
NCIS
as Victor Tillman
2003
House
as Jeffrey Keener
2004
CSI: Crime Scene Investigation
as Chevy Cigs
2000
Criminal Minds
as Dr. Barry Landman
2005
Bones
as Forrest Wakefield
2005
The Mentalist
as Gabriel Fanning
2008
The X-Files
as John Gillnitz
1993
CSI: Miami
as Hugh Parker
2002
S.W.A.T.
as Professor Marc Lasky
2017
NCIS: Los Angeles
as CIA Agent Michael Snyder
2009
Monk
as John Keyes
2002
Blue Bloods
as Gerry Gertz
2010