
Gregory Phillip "Greg" Grunberg (born July 11, 1966) is an American television actor. He is best known from starring as Matt Parkman on the NBC television series Heroes. Other notable roles included the characters Sean Blumberg on Felicity (1998–2002) and Eric Weiss on Alias (2001–2006), both created and produced by childhood friend J. J. Abrams.
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Larry Macer
Detective Mark McDaniels
Bad Robot Security Guard (voice)
Ronald Neuberger
Seth Norris
Chris Callahan
Bjorn (voice)
Len Bryant
Jeff Morrison
Tom Patterson
Greg Grunberg As Agent Bill Pearson
Greg Wetzel
Jack Leverett
Jay Gianukos
Matt Parkman
Brad Carver
Gatman
George
Joey Schulman
Self - Restaurant Patron
Andersen
Loeb
Frankie Cantrell
Gene Moretti
Scott Rhinehart
Sean Blumberg
Sean Blumberg (voice) (uncredited)
Ray Wheeler
Snap Wexley
Mikey
Snap Wexley
Self
Vic
Steve
Kurt Baronson
Nathan Abbott
Detective Davis
Self
Kevin
James
Stepdad (voice)
Bernie Fein
Dale Locklin
Commander Finnegan
Sitcom Actor
Nick
Phil (Jack's Driver)
Shirtless Fan 'T'
Mark Calzonetti
Eric Weiss
Carter Abbey
Matt Parkman
Date #1 (uncredited)
Samaritan Driver (uncredited)
Joe (voice)
Dr. Wagner
Self
Owen Stokes
Michael
Kozlowski
Steel Maxum (voice)
Moore
TV Commercial Director
Hal Harrington
Judd
Limo Driver
Nick Case
Eugene Wylder
Himself
Bob
Self
Alex Mathis
911 Operator
Brett
Detective Garces
Scott Paterno
Alex Mathis
Wilke - New Jersey Informant
Jerry
Four Seasons Hotel Security
Double Date Guy
An Abernathy Cousin
Detective Arden
Self
Bruce
Self
Self
Detective Paul Jackson
Dr. Gutheridge
Darren
Dr. Cooper
Limo Driver
Self - Eric Weiss
Best Man
Sean Nusbalm
Evan
Odin (voice)
Principal
Smythe
Self
Manager
Self
Barry
Self - Guest
Self - Guest
Self
Self - Host