Marcus Giamatti

1961 (64) • Acting

Born: 10/3/1961 (64) in New Haven, Connecticut, USA

Known for: Acting

Marcus Giamatti

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.

Known For

House

86%

Jeffrey Keener

2004

The Mentalist

84%

Gabriel Fanning

2008

Criminal Minds

83%

Dr. Barry Landman

2005

The X-Files

84%

John Gillnitz

1993

Bones

82%

Forrest Wakefield

2005

Fringe

81%

Ray Duffy

2008

NCIS

76%

Victor Tillman

2003

CSI: Miami

77%

Hugh Parker

2002

Bosch: Legacy

80%

Simon Wakefield

2022

S.W.A.T.

80%

Professor Marc Lasky

2017

Get Shorty

71%

Unknown

2017

The Curse of Downers Grove

46%

Rich

2015

Big Time in Hollywood, Fl

71%

Detective Jim Zdorkin

2015

CSI: Cyber

61%

Artie Sneed

2015

Starving in Suburbia

65%

Michael

2014

Mighty Med

75%

Sonic Shriek

2013

Perception

72%

Joel (Conley's Agent)

2012

Blue Lagoon: The Awakening

65%

Principal Thomas

2012

Common Law

68%

Unknown

2012

The Exes

66%

Don

2011

Revenge

76%

Dr. Ray Clemons

2011

Franklin & Bash

73%

Golf Club Owner

2011

Blue Bloods

78%

Gerry Gertz

2010

The Defenders

72%

Lawyer

2010

The Chosen One

44%

Freddy

2010

NCIS: Los Angeles

75%

CIA Agent Michael Snyder

2009

The Mentalist

84%

Gabriel Fanning

2008

Fringe

81%

Ray Duffy

2008

On the Doll

52%

Uncle Lou

2007

Life

76%

Zak Sutter

2007

Criminal Minds

83%

Dr. Barry Landman

2005

Bones

82%

Forrest Wakefield

2005

The Closer

78%

Glen Lynch

2005

Medium

75%

Lance Pauling

2005

House

86%

Jeffrey Keener

2004

Cold Case

77%

Larry Kenick

2003