Kathryn Kates is an American actress living and working in New York City. She is probably best known for her recurring role on Seinfeld in the iconic episodes, "The Marble Rye" and "The Dinner Party" (the Babka episode). Kathryn is active in the New York theater scene and is often featured in commercials, films, cable & television series and Off & Off-Off Broadway theater productions. Click to read full bio.