(Born July 11, 1966) Greg Grunberg is famous for his role as Eric Weiss on ABC's "Alias". He is currently starring as Matt Parkman on the NBC television series "Heroes". Previous to that he played Sean on "Felicity", and had multiple-episode appearances on "NYPD Blue" and "Melrose Place". Greg's film credits include "Ladykillers" and "Hollow Man".