CBS Television · Public domain

Julie Kavner won a Primetime Emmy for playing Brenda Morgenstern, Valerie Harper's screen sister, on Rhoda before becoming the voice of Marge Simpson — plus Marge's mother and both her sisters — on The Simpsons since its start as animated shorts on The Tracey Ullman Show in 1987. Famously private, her contract exempts her from ever promoting the show, and she won a second Emmy in 1992 for the voice work itself.