| Jerry Seinfeld | Jerry Seinfeld |
| Julia Louis-Dreyfus | Elaine Benes |
| Michael Richards | Cosmo Kramer |
| Jason Alexander | George Costanza |
| Lloyd Bridges | Izzy Mandelbaum |
| Liz Sheridan | Helen Seinfeld |
| Barney Martin | Morty Seinfeld |
| John O'Hurley | J. Peterman |
| Chelsea Noble | Danielle |
| O'Neal Compton | Earl Haffler |
| Lisa Mende | Carol |
| Gene Dynarski | Izzy Mandelbaum Jr. |
| Marco Rodríguez | Guillermo
(as Marco Rodriguez) |
| Joe Urla | Dugan
(as Joseph Urla) |
| Jill Talley | Gail |
| Jill Holden | Lisa |
| Todd Jeffries | Blaine |
| Earl Schuman | Izzy Mandelbaum Sr. |
| Edgar Small | Sid Luckman |
| Lauren Bowles | Waitress |
| Juan Garcia | Jaime |
| Jeffrey Kurt Miller | Neil
(as Jeff Miller) |
| Ruth Cohen | Ruthie Cohen
(uncredited) |
| Kenneth J. Morgan | Theatre Patron
(uncredited) |