Jerry Seinfeld, Jason Alexander, Tim DeKay, Kyle T. Heffner, Pat Kilbane, and Michael Richards in The Bizarro Jerry (1996)

Jason Alexander, Stacy Keach, Hal Sparks, Tim Kazurinsky, Robert Knepper, and Mike Starr in The Twilight Zone Radio Dramas (2002)

Julia Louis-Dreyfus, Jerry Seinfeld, Jason Alexander, and Michael Richards in Seinfeld (1989)

Geraldine Chaplin, Kelsey Grammer, Jennifer Love Hewitt, Jason Alexander, Jane Krakowski, and Jesse L. Martin in A Christmas Carol: The Musical (2004)

Rowan Atkinson, Robert De Niro, Bill Paxton, Rene Russo, Ben Kingsley, Jason Alexander, Amanda Bynes, Frankie Muniz, and Paul Giamatti in The Adventures of Rocky & Bullwinkle (2000)

Jason Alexander, Frances Conroy, Judith Light, Chris Messina, Jennifer Westfeldt, and Fred Willard in Ira & Abby (2006)

George Wendt, Vanessa Williams, Tyne Daly, Jason Alexander, Marc Kudisch, and Chynna Phillips in Bye Bye Birdie (1995)

Vanessa Williams, Jason Alexander, Jason Gaffney, Marc Kudisch, and Chynna Phillips in Bye Bye Birdie (1995)

Dan Aykroyd, Bruce Willis, Julia Louis-Dreyfus, John Ritter, Elijah Wood, Jon Lovitz, Jason Alexander, Faith Ford, and Reba McEntire in North (1994)

James Woods, Lolita Davidovich, and Jason Alexander in For Better or Worse (1995)

Vanessa Williams, Jason Alexander, and Marc Kudisch in Bye Bye Birdie (1995)

Jason Alexander and Courtney Gains in The Smelly Car (1993)

Jerry Seinfeld, Jason Alexander, and Fred Stoller in Seinfeld (1989)

Julia Louis-Dreyfus, Jerry Seinfeld, Jason Alexander, Lawrence LeJohn, Fred Stoller, and Patrick Warburton in Seinfeld (1989)

Jerry Seinfeld, Jason Alexander, and Michael Richards in Seinfeld (1989)

Jason Alexander, Michael Richards, and Stephen Tobolowsky in Seinfeld (1989)

Jerry Seinfeld, Jason Alexander, and Stephen Tobolowsky in Seinfeld (1989)

Julia Louis-Dreyfus, Jerry Seinfeld, Jason Alexander, and Lauren Bowles in Seinfeld (1989)

Jason Alexander and Lauren Bowles in Seinfeld (1989)

Jason Alexander, Lauren Bowles, and Ruth Cohen in Seinfeld (1989)

Tim Robbins and Jason Alexander in Jacob's Ladder (1990)

Jason Alexander, Melanie Chartoff, Patience Cleveland, Jon Favreau, and Lawrence LeJohn in Seinfeld (1989)

Jason Alexander and Jon Favreau in Seinfeld (1989)

Jason Alexander and Jack Hallett in Seinfeld (1989)

James Spader, Jason Alexander, and Michael Fishman in Seinfeld (1989)

Jerry Seinfeld, James Spader, Jason Alexander, and Ruth Cohen in Seinfeld (1989)

Jerry Seinfeld, Amanda Peet, and Jason Alexander in Seinfeld (1989)

Ron Perlman, Alison Eastwood, Jason Alexander, Rob Estes, Esai Morales, and Kimberly Williams-Paisley in How to Go Out on a Date in Queens (2006)