Contrary to his fears, Richards stayed on "Seinfeld" for all of its nine season run. Kramer was ultimately absent from only one other episode: "The Pen," the third episode of "Seinfeld" season 3.

Some of "Seinfeld's worst episodes can seem outright tacky compared to the show's usually stellar quality. The now-classic episode "The Pen" nearly sunk the show after the exclusion of Jason ...