WASHINGTON — Lynne Marie Stewart, known for her role as Miss Yvonne in "Pee-wee's Playhouse,' has died. She was 78. Actress Cassandra "Elvira" Peterson announced Stewart's death on her social media.

(NEXSTAR) — Lynne Marie Stewart, well-known for her roles on “Pee-wee’s Playhouse” and “It’s Always Sunny in Philadelphia,” has died, according to multiple reports. She was 78.

on the 1980s children’s television series “Pee-wee’s Playhouse” and the sweet, timorous mother of one of the main characters on “It’s Always Sunny in Philadelphia,” died on Friday in ...