Marcus Giamatti
Known For
Acting
Born
1961-10-03 in New Haven, Connecticut, USA
Biography
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.
Most Known For
NCIS
as Victor Tillman
House
as Jeffrey Keener
Criminal Minds
as Dr. Barry Landman
Bones
as Forrest Wakefield
The X-Files
as John Gillnitz
CSI: Crime Scene Investigation
as Chevy Cigs
The Mentalist
as Gabriel Fanning
Blue Bloods
as Gerry Gertz
S.W.A.T.
as Professor Marc Lasky
NCIS: Los Angeles
as CIA Agent Michael Snyder
Monk
as John Keyes
CSI: Miami
as Hugh Parker
Fringe
as Ray Duffy
The Closer
as Glen Lynch
Medium
as Lance Pauling
Crossing Jordan
as Donald Hagen
Quantum Leap
as Rick Upfield
Cold Case
as Larry Kenick
Revenge
as Dr. Ray Clemons
Homicide: Life on the Street
as Bernard Abrams