Jerry Seinfeld Jerry Seinfeld Actor, Writer Jason Alexander George Costanza Actor Michael Richards Cosmo Kramer Actor Julia Louis-Dreyfus Elaine Benes Actor Wayne Knight Newman Guest Star Steve Hytner Kenny Bania Guest Star Patrick Warburton David Puddy Guest Star Gordon Jump David Puddy Guest Star Kristin Davis Jenna Guest Star Connie Sawyer Old Woman Guest Star Matthew Fonda NBC Executive Guest Star Chris Parnell NBC Executive Guest Star Heidi Swedberg Actor Estelle Harris Actor Jerry Stiller Actor Andy Ackerman Director Larry David Executive Producer George Shapiro Executive Producer Howard West Executive Producer Alec Berg Writer Jeff Schaffer Writer David Mandel Writer