Barbara Pilavin is the German woman in The Doorman (Season 6 - Episode 18).

Barbara Stock is the attractive subway passenger in The Subway (Season 3 Episode 13).

Berta Waagfjord is Bridgette in The Diplomat's Club (Season 6 - Episode 21).

Better Midler is Herself in The Understudy (Season 6 Episode 4).

Billye Ree Wallace is Nana in three episodes. The first, The Pledge Drive (Season 6 Episode 3).

Blaire Baron is Female Executive in The Pick (Season 4 Episode 13).

Brenda Strong is Sue Ellen Mischke in four episodes. Her first appearance was in The Caddy (Season 7 Episode 12).

Bridget Sienna is Evie in The Red Dote (Season 3 Episode 12).

Bunny Summers is Old Woman in The Muffin Tops (Season 8 Episode 21).

C.K. Steefel is Kramer's Girlfriend in The Keys (Season 3 Episode 22) and Sylvia in The Cigar Store Indian (Season 5 Episode 10).

Candice Bergen is a herself in The Keys (Season 3 Episode 22).

Carmi Greene is Guest in The Butter Shave (Season 9 Episode 1).

Carol Ann Susi is Carrie in The Boyfriend (Season 3 - Episodes 17-18).

Carol Kane is Corinne, in The Marine Biologist (Season 5 Episode 14).

Carol Kiernan is Mother in The Merv Griffin Show (Season 9 Episode 6).

Carol Leifer appears in three Seinfeld episodes. The first is The Kiss Hello (Season 6 - Episode 16).

Carol Mansell is Mrs. Sanger in The Bubble Boy (Season 4 - Episode 7).

Carol Rosenthal is Ticket Clerck #1 in The Implant (Season 4 Episode 19).

Catherine Keener is Nina West in The Letter (Season 3 Episode 20).

Cathy Lind Hayes is Woman Behind Elaine in The Movie (Season 4 Episode 14).

Charlotte Lewis is Nina in The Switch (Season 6 Episode 11).

Chelsea Noble is Danielle in The English Patient (Season 8 Episode 17).

Cheryl Francis Harrington is Waitress in The Switch (Season 6 Episode 11).

Christa Miller is Mrs. Ellen De Grantmont in The Sniffing Accountant (Season 5 Episode 4) and Paula in The Doodle (Season 6 Episode 20).

Christie Mellor is Concessionaire in The Movie (Season 4 Episode 14).

Christine Catell is Stewardess in The Diplomat's Club (Season 6 - Episode 21).

Christine Dunford is Leslie in The Baby Shower (Season 2 Episode 10) and Natasha in The Pie (Season 5 Episode 15).