Original sentence: Born Jay Greenspan, Jason Alexander (born "Jay Greenspan", September 23, 1959, in Newark, New Jersey) was one of the stars of the award-winning television sitcom "Seinfeld".He has also appeared in a number of movies, and done some work as a director
Edited sentence: Born Jay Greenspan, Jason Alexander is an accomplished actor who played a key role in the award-winning television sitcom "Seinfeld," arguably the most successful television series ever made