Jason Alexander

Jay Scott Greenspan, better known by his stage name Jason Alexander is an American actor, voice actor, comedian, and director. He is best known for his role as the bumbling-but-lovable George Costanza in the NBC sitcom, Seinfeld from 1989 to 1998, as well as the title character in the adult animated sitcom, Duckman.

He does the voice of Mr. Bibb in Lincoln: The Movie.