In honor of the 30th anniversary of 'Seinfeld's' series premiere July 5, 1989, take a look at what memorable guest stars like Lauren Graham, Kristin Davis, Teri Hatcher, Marcia Cross, Molly ...

Lauren Graham's role in Seinfeldis unexpected for those who are familiar with Gilmore Girls, but not so much the iconic sitcom.Graham portrays Valerie, Jerry's girlfriend, in the Seinfeld season 8 ...

Graham and Patterson are far from the only future stars that appeared in Seinfeld. They are among the only Gilmore Girls cast members that appeared on the show, though.