Marcus Giamatti
Acting
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.
TV Shows(38)
Bosch: Legacy
Simon Wakefield
2022
S.W.A.T.
Professor Marc Lasky
2017
Get Shorty
2017
Big Time in Hollywood, Fl
Detective Jim Zdorkin
2015
CSI: Cyber
Artie Sneed
2015
Mighty Med
Sonic Shriek
2013
Perception
Joel (Conley's Agent)
2012
Common Law
2012
The Exes
Don
2011
Revenge
Dr. Ray Clemons
2011
Franklin & Bash
Golf Club Owner
2011
Blue Bloods
Gerry Gertz
2010
The Defenders
Lawyer
2010
NCIS: Los Angeles
CIA Agent Michael Snyder
2009
Lie to Me
Fentris
2009
The Mentalist
Gabriel Fanning
2008
Fringe
Ray Duffy
2008
Life
Zak Sutter
2007
Criminal Minds
Dr. Barry Landman
2005
Bones
Forrest Wakefield
2005
The Closer
Glen Lynch
2005
Medium
Lance Pauling
2005
House
Jeffrey Keener
2004
Cold Case
Larry Kenick
2003
NCIS
Victor Tillman
2003
CSI: Miami
Hugh Parker
2002
Monk
John Keyes
2002
Crossing Jordan
Donald Hagen
2001
CSI: Crime Scene Investigation
Chevy Cigs
2000
Judging Amy
Peter Gray
1999
Monty
1994
The X-Files
John Gillnitz
1993
Living Single
Jack Peabody
1993
Homicide: Life on the Street
Bernard Abrams
1993
Flying Blind
Ted Sharperson
1992
Dream On
Salesman
1990
Quantum Leap
Rick Upfield
1989
Hunter
Jack Kane
1984
Movies(15)
The Curse of Downers Grove
Rich
2015
Starving in Suburbia
Michael
2014
Blue Lagoon: The Awakening
Principal Thomas
2012
The Chosen One
Freddy
2010
On the Doll
Uncle Lou
2007
The Business of Strangers
Robert
2001
Hamlet
Guildenstern
2000
Judy Berlin
Eddie Dillon
1999
Pirates of Silicon Valley
Dan Kottke
1999
Jimmy Hollywood
BMW Preppie
1994
3 Ninjas Kick Back
Announcer
1994
Necessary Roughness
Sargie 'Fumblina' Wilkinson
1991
Aftermath: A Test of Love
Luke
1991
Mr. & Mrs. Bridge
Gil Davis
1990
Is It Time?
Frank