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Gregory Phillip "Greg" Grunberg (born July 11, 1966) is an American television actor. He is best known for starring as Matt Parkman on the NBC television series Heroes. Other notable roles include 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. Grunberg was born in Los Angeles, California, the son of Sandy (née Klein) and Gerry Grunberg, and had a Jewish upbringing. Grunberg has had guest roles in television starting 1990. From 1998-2002 he appeared as Sean Blumberg on Felicity. He... MORE

Gregory Phillip "Greg" Grunberg (born July 11, 1966) is an American television actor. He is best known for starring as Matt Parkman on the NBC television series Heroes. Other notable roles include 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. Grunberg was born in Los Angeles, California, the son of Sandy (née Klein) and Gerry Grunberg, and had a Jewish upbringing. Grunberg has had guest roles in television starting 1990. From 1998-2002 he appeared as Sean Blumberg on Felicity. He appeared from 2001-2006 as Eric Weiss on Alias. He left that series as a regular to star on the NBC sitcom, Grand Union. Since 2003, Abrams had planned a series called The Catch about a bounty hunter, starring Grunberg in the lead role. Suggested for both the 2004–2005 and 2005–2006 seasons, the series was never produced; however, a pilot episode was shot. Abrams also cast Grunberg in a brief role as the pilot for the 2004 series Lost. Grunberg returned for the first-season finale, but his scenes were cut for time, and were instead included on the season 1 DVD set. He also appeared in a small role in LESS