Famous Actors Who Appeared on Seinfeld Before They Became A-List Stars

Megan Mullally

Image Source:: ROBERT HANASHIRO, USA TODAY

Episode: “The Implant” (Season 4, Episode 19)

Funnily enough, Mullally also appeared in the same episode as Hatcher. She played George’s girlfriend in an episode where he only flew with her for her aunt’s funeral in order to rack up frequent flier miles. If that’s not a Costanza move, nothing is.