Lynne Marie Stewart, the actress finest identified for her roles in “American Graffiti,”  “Pee-wee’s Playhouse” and “It’s All the time Sunny in Philadelphia,” has died, based on a former Hollywood colleague.

Cassandra Peterson, identified for her iconic “Elvira” character, shared the unhappy information on IG, writing … “My coronary heart is breaking upon listening to the information of my expensive buddy Lynne Stewart’s passing. One of many kindest, sweetest, funniest girls who ever lived. The enduring Miss Yvonne of Pee-wee’s Playhouse: She’ll at all times be ‘essentially the most stunning girl in Puppetland’. 💔”

Stewart was in CP’s “Elvira: Mistress of the Darkish” … Cassandra and the late ‘Pee-wee’ actor Paul Reubens had been tremendous shut, so stands to motive she’d know.

We reached out to a rep for Stewart for more information … to this point, no phrase again.

As Cassandra famous, Stewart performed Miss Yvonne, The Most Stunning Girl in Puppetland, on “Pee-wee’s Playhouse” from 1986 to 1990 … and she or he appeared in a number of different ‘Pee-wee’ titles, together with “Pee-wee’s Massive Journey” and “Massive High Pee-wee.”

The actress additionally appeared within the iconic George Lucas movie “American Graffiti” and the Arnold Schwarzenegger traditional, “The Working Man.”

Stewart’s newer fan-favorite position was as Charlie Kelly’s mom Bonnie, in “It’s All the time Sunny in Philadelphia.”

She was 78.