* Marla Gibbs as Mrs. Kaufman
* Roz Ryan as Loretta
* James Pickens Jr. as Dr. Stevens
* Debbi Morgan as Donna Strickland
* Michael Richards as Cosmo Kramer
* Jerry Stiller as Frank Costanza
* Estelle Harris as Estelle Costanza
* Harold Gould as Frank's father
* Liz Sheridan as Jerry's mother
* Tony Shalhoub as George's father
* Julia Louis-Dreyfus as Jerry's girlfriend