Jerry Seinfeld Jerry Seinfeld Actor Julia Louis-Dreyfus Elaine Benes Actor Jason Alexander George Costanza Actor Michael Richards Cosmo Kramer Actor Estelle Harris Estelle Constanza Guest Star Jerry Stiller Frank Costanza Guest Star Stephen Hytner Bania Guest Star Richard Herd Wilhelm Guest Star Joe Urla Dugan Guest Star Ned Bellamy Eddie Guest Star A.J. Langer Abby Guest Star Katie Layman Cynthia Guest Star Eddie Allen Doctor Guest Star Gwen McGee Janine Guest Star Lynn Manning Blind Man Guest Star Larry David Executive Producer George Shapiro Executive Producer Howard West Executive Producer