Jerry Seinfeld Jerry Seinfeld Actor Julia Louis-Dreyfus Elaine Benes Actor Jason Alexander George Costanza Actor Michael Richards Cosmo Kramer Actor Wayne Knight Newman Guest Star Richard Herd Wilhelm Guest Star John O'Hurley J. Peterman Guest Star Brenda Strong Sue Ellen Guest Star Brad Garrett Tony Guest Star Patrick Kerr La Forge - Clerk Guest Star Harvey Jason Auctioneer Guest Star Larry Polson Homeless Guy Guest Star Larry David Executive Producer George Shapiro Executive Producer Howard West Executive Producer Andy Ackerman Director Gregg Kavet Writer Andy Robin Writer