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Greg Grunberg
Greg Grunberg Appearing: Friday, Saturday, and Sunday Greg Grunberg got his first credited role in Matt Stone and Trey Parker's 1998 film BASEketball. From 1998–2002 he appeared as Sean Blumberg on Felicity. He appeared from 2001–06 as Eric Weiss on Alias. He left that series as a regular to star on the NBC sitcom, Grand Union. Abrams also cast Grunberg in a brief