
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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Detective Mark McDaniels
Larry Macer
Bad Robot Security Guard (voice)
Ronald Neuberger
Chris Callahan
Tom Patterson
Len Bryant
Bjorn (voice)
Greg Grunberg As Agent Bill Pearson
Seth Norris
Jack Leverett
Jeff Morrison
Jay Gianukos
Brad Carver
Greg Wetzel
Matt Parkman
George
Self - Restaurant Patron
Gatman
Joey Schulman
Sean Blumberg
Sean Blumberg (voice) (uncredited)
Loeb
Frankie Cantrell
Detective Garces
Gene Moretti
Ray Wheeler
Self
Phil (Jack's Driver)
Scott Rhinehart
Snap Wexley
Mikey
Snap Wexley
Andersen
Self
Self
Vic
Kevin
TV Commercial Director
Sitcom Actor
Limo Driver
Dale Locklin
An Abernathy Cousin
Moore
Steve
Stepdad (voice)
James
Nathan Abbott
Kurt Baronson
Detective Davis
Steel Maxum (voice)
Wilke - New Jersey Informant
Date #1 (uncredited)
Four Seasons Hotel Security
Commander Finnegan
Matt Parkman
Scott Paterno
Self
Nick
Shirtless Fan 'T'
Carter Abbey
Bernie Fein
Owen Stokes
Dr. Wagner
Dr. Gutheridge
Joe (voice)
Detective Arden
Brett
Kozlowski
Samaritan Driver (uncredited)
Eric Weiss
Smythe
911 Operator
Bruce
Himself
Detective Paul Jackson
Mark Calzonetti
Manager
Eugene Wylder
Odin (voice)
Alex Mathis
Hal Harrington
Alex Mathis
Rudy's Assistant - Sean Nusbalm
Self
Barry
Self
Double Date Guy
Michael
Judd
Limo Driver
Bob
Nick Case
Self
Himself
Jerry
Self
Principal
Darren
Dr. Cooper
Best Man
Evan
Self
Self - Guest
Self
Self - Host