54. Dolores, a.k.a. 'Mulva'
Best-known episode: "The Junior Mint"
Jerry's torrid affair with this mysterious lady (played by Susan Walters) takes a tragic turn when he forgets her name — all he knows is that it rhymes with a female body part. It could be Mulva, it could be Celeste, it could be Bovary or even Gipple. But once Jerry starts guessing, it's all over. ROB SHEFFIELD