Deborah May is Elsa in The Puffy Shirt (Season 5 - Episode 2).
Debra Jo Rupp is Katie, Jerry’s assistant in The Diplomat's Club (Season 6 Episode 22) and in The Abstinence (Season 8 Episode 9).
Debra Messing is Beth Lookner in The Wait Out (Season 7 Episode 21) and in The Yada Yada (Season 8 Episode 19).
Denise Dowse appears in 2 episodes: 1) The Wallet (Season 4 Episode 5) and 2) The Couch (Season 6 Episode 5).
Diana Castle is Mrs. Zanfino in The Wait Out (Season 7 - Episode 21) and in The Foundation (Season 8 - Episode 1).
Elizabeth Barrington is Mom in The Yada Yada (Season 8 - Episode 19).
Elizabeth Dennehy is Alison in The Handicap Spot (Season 4 Episode 22).
Elizabeth Morehead is Noel in The Pez Dispenser (Season 3 Episode 14).
Elizabeth Sjoli is the girl that meets George Costanza wearing a toupee in Monk's in The Scofflaw (Season 6 Episode 13).
Ellen Albertini Dow is Peterman's momma in The Secret Code (Season 7 Episode 7).
