The Invitations (Season 7 Episode 22).
Sue Goodman is Clerk in
The Implant (Season 4 - Episode 19).
Susan Beaubian is Airline Ticket Teller #2 in
Susan Walters is Dolores, A.K.A Mulva, in The Junior Mint (Season 4 Episode 20) and in The Foundation (Season 8 Episode 1).
Teri Hatcher is Sidra Holland, Jerry's girlfriend in The Implant (Season 4 Episode 19).
The trumpet player appears in The Mom and Pop Store (Season 6 Episode 8).