Acting · New Haven, Connecticut, USA · Born October 3, 1961
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.
TVBosch: Legacy
2022
as Simon Wakefield
TVS.W.A.T.
2017
as Professor Marc Lasky
TVGet Shorty
2017
MovieThe Curse of Downers Grove
2015
as Rich
TVBig Time in Hollywood, Fl
2015
as Detective Jim Zdorkin
TVCSI: Cyber
2015
as Artie Sneed
MovieStarving in Suburbia
2014
as Michael
TVMighty Med
2013
as Sonic Shriek
TVPerception
2012
as Joel (Conley's Agent)
MovieBlue Lagoon: The Awakening
2012
as Principal Thomas
TVCommon Law
2012
as Derek Winfield
TVThe Exes
2011
as Don
TVRevenge
2011
as Dr. Ray Clemons
TVFranklin & Bash
2011
as Golf Club Owner
TVBlue Bloods
2010
as Gerry Gertz
TVThe Defenders
2010
as Lawyer
MovieThe Chosen One
2010
as Freddy
TVNCIS: Los Angeles
2009
as CIA Agent Michael Snyder
TVLie to Me
2009
as Fentris
TVThe Mentalist
2008
as Gabriel Fanning
TVFringe
2008
as Ray Duffy
MovieOn the Doll
2007
as Uncle Lou
TVLife
2007
as Zak Sutter
TVCriminal Minds
2005
as Dr. Barry Landman
TVBones
2005
as Forrest Wakefield
TVThe Closer
2005
as Glen Lynch
TVMedium
2005
as Lance Pauling
TVHouse
2004
as Jeffrey Keener
TVCold Case
2003
as Larry Kenick
TVNCIS
2003
as Victor Tillman
TVCSI: Miami
2002
as Hugh Parker
TVMonk
2002
as John Keyes
TVCrossing Jordan
2001
as Donald Hagen
MovieThe Business of Strangers
2001
as Robert
MovieHamlet
2000
as Guildenstern
TVCSI: Crime Scene Investigation
2000
as Chevy Cigs
MovieJudy Berlin
1999
as Eddie Dillon
TVJudging Amy
1999
as Peter Gray
MoviePirates of Silicon Valley
1999
as Dan Kottke
MovieJimmy Hollywood
1994
as BMW Preppie
Movie3 Ninjas Kick Back
1994
as Announcer
TVMonty
1994
TVThe X-Files
1993
as John Gillnitz
TVLiving Single
1993
as Jack Peabody
TVHomicide: Life on the Street
1993
as Bernard Abrams
TVFlying Blind
1992
as Ted Sharperson
MovieNecessary Roughness
1991
as Sargie 'Fumblina' Wilkinson
MovieAftermath: A Test of Love
1991
as Luke
MovieMr. & Mrs. Bridge
1990
as Gil Davis
TVDream On
1990
as Salesman
TVQuantum Leap
1989
as Rick Upfield
TVHunter
1984
as Jack Kane
MovieIs It Time?
as Frank
