7. Sarah Silverman
Known for: Stand-up comedy, shows up in a lot of stuff
Seinfeld Appearance: "The Money" Sharp-tongued comedienne Sarah Silverman played Kramer's girlfriend Emily in a 1997 episode of the show. Now, many of the characters on "Seinfeld" are remembered by the specific descriptions offered by the core four (the close-talker, the re-gifter, etc). Silverman is one of the lucky few that hold this honor. Her character is known for having "the jimmy legs". Basically, she couldn't control her legs when she slept, so she would kick Kramer in the night. The problem is eventually "solved" when Kramer and Emily start staying at George's parents house, where they sleep in separate beds in the same room. Still, this doesn't lead to a lasting relationship, and Silverman becomes another "Seinfeld" girlfriend that is never seen or heard from again.