Elaine! Elaine! :-D
But of course - Julia Louis-Dreyfus is best known as Jerry Seinfeld's ex-girlfriend and still-platonic friend Elaine Benes, on the classic nineties NBC sitcom "Seinfeld." Elaine was a savvy presence contrasting with Jerry's sour cynicism, Kramer's hipster-doofus persona, and George Costanza's self-absorption. She first came to people's attention when she was a "Saturday Night Live" cast member for three years (1982 to 1985).
She's been on top since "Seinfeld" went out on top in 1998, having starred in the hit sitcom "The New Adventures of Old Christine" (about a first wife competing with a second wife of the same name) and the HBO series "Veep," as a female U.S. Vice President who doesn't get any more respect than her male predecessors. She has also appeared in the hit movie Enough Said with the late James Gandolfini.
Fun fact: Julia Louis-Dreyfus met her husband Brad Hall when they were both in "Saturday Night Live"'s repertory company.