Lynne Marie Stewart Dies: ‘Pee-Wee’s Playhouse’ & ‘It’s Always Sunny in Philadelphia’ Star Was 78

Lynne Marie Stewart, best known for playing Miss Yvonne on Pee-wee’s Playhouse has died at the age of 78.

News of Stewart’s death surfaced in various tributes from friends, most notably from Elvira star Cassandra Peterson who captioned an image on Instagram, “My heart is breaking upon hearing the news of my dear friend @lynnestewart78 Lynne Stewart’s passing. One of the kindest, sweetest, funniest women who ever lived. The iconic Miss Yvonne of Pee-wee’s Playhouse: She’ll always be ‘the most beautiful woman in Puppetland.’” Stewart’s cause of death is unknown at this time.