Lynne Marie Stewart (December 14, 1946 – February 21, 2025) was an American actress,[1][2] widely known for her performance as Miss Yvonne,[3] the Most Beautiful Woman in Puppet Land. She originated the role in the 1981 stage show The Pee-wee Herman Show, continuing it on the CBS television show Pee-wee's Playhouse, the 2010 Los Angeles stage revival, and the Broadway production which opened in November 2010 at the Stephen Sondheim Theatre.[4] Stewart was also known for her recurring role on the FX/FXX television series It's Always Sunny In Philadelphia as Charlie Kelly's mother Bonnie.[5][4]