Jerry Seinfeld Jerry Seinfeld Actor Julia Louis-Dreyfus Elaine Benes Actor Jason Alexander George Costanza Actor Michael Richards Cosmo Kramer Actor Mark Harelik Milos Guest Star Ben Stein Shellbach Guest Star Joel Polis Reilly Guest Star Ivana Milicevic Patty Guest Star Danny Strong Vincent Guest Star Richard Livingston Bill Guest Star Charles Kahlenberg Fred Guest Star Stan Sellers McAdam Guest Star Peggy Mannix Woman Guest Star Fatima Lowe Secretary Guest Star Nancy Linehan Charles Woman Exec. Guest Star Larry David Executive Producer George Shapiro Executive Producer Howard West Executive Producer