Lynne Marie Stewart, the character actress identified for her work on Pee-Wee's Playhouse and It's Always Sunny in Philadelphia, has died.

The actress "handed away peacefully after a brief sickness" at house in Los Angeles on Friday, her supervisor confirmed to Leisure Weekly. She was 78.

Stewart was finest identified for her collaborations with Paul Reubens in a large number of Pee-wee initiatives, enjoying Miss Yvonne and a variety of different characters. She additionally was liable for quite a few hilarious scenes in It's All the time Sunny, by which she performed the chaotic, off-the-walls neurotic mom of Charlie (Charlie Day) in 18 episodes.

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Day paid tribute to his on-screen mom on Instagram. "RIP TV mother," he wrote. "Thanks for 20 years of snickers. You deserve a standing ovation."

Elvira, a.okay.a. Cassandra Peterson, who labored with Stewart in Elvira: Mistress of the Darkish and The Elvira Present, additionally honored her former costar on-line. "My coronary heart is breaking upon listening to the information of my pricey pal @lynnestewart78 Lynne Stewart’s passing," she wrote on Instagram. "One of many kindest, sweetest, funniest ladies 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.'"

Paul Feig, who labored with Stewart on Bridesmaids, additionally shared his reminiscence of the actress on social media. "So unhappy. Lynne was the most effective," he wrote. "I used to be such a fan of hers and it was such an honor to work along with her in Bridesmaids. A really fantastic hilarious particular person. You’ll be missed, Lynne."

Born in Los Angeles in 1946, Stewart majored in Theatre Arts at L.A. Metropolis School alongside her lifelong pal, Cindy Williams of Laverne & Shirley fame. Stewart was an early member of the Groundlings, a seminal improv comedy troupe that additionally included Reubens, Kathy Griffin, and future Saturday Night time Dwell solid members Phil Hartman and Jon Lovitz on the time.

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Stewart's first display credit score got here with Jack Nicholson's 1971 directorial debut Drive, He Stated. In 1973, she appeared in George Lucas' American Graffiti alongside Richard Dreyfuss, who her supervisor described as a "childhood pal." The movie was nominated for 5 Oscars, together with Finest Image, and earned $115 million on the home field workplace, making it the third-highest-grossing film of the 12 months.

Stewart labored with Williams on a number of episodes of Laverne & Shirley, enjoying an assortment of aspect characters. She additionally offered the voice of Shirley (Williams' character within the flagship collection) on cartoon spinoffs like Laverne & Shirley within the Military and Mork & Mindy/Laverne & Shirley/Fonz Hour.

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The actress was part of Reubens' Pee-wee world from its earliest days on the Groundlings, enjoying a key position within the authentic The Pee-wee Herman Present stage present in 1981, which was additional popularized by an HBO taping. She portrayed Miss Yvonne, "the Most Lovely Lady in Puppetland" who was often entangled with most of the male characters within the playhouse. She reprised the position in Pee-wee's Playhouse on CBS, the 1988 TV film Christmas at Pee-wee's Playhouse, and the 2010 stage manufacturing The Pee-wee Herman Present on Broadway.

Stewart additionally appeared in all three Pee-wee films, although she didn’t play Miss Yvonne. As a substitute, in Pee-Wee’s Big Adventure, she performed Mom Superior; in Massive Prime Pee-wee, she portrayed Zelda the bearded woman; and in Pee-wee's Massive Vacation, she appeared as Jimmy.

On the massive display, Stewart performed supporting roles in large movies, together with Bridesmaids (by which she performed Maya Rudolph's mom), Clear and Present Danger with Harrison Ford, The Working Man with Arnold Schwarzenegger, and Kids of a Lesser God with Marlee Matlin and William Harm.

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On tv, Stewart appeared in episodes of MASH, The Golden Girls, The Jeffersons, Night time Court docket, Hawaii 5-O, Arrested Development, Grey’s Anatomy, Curb Your Enthusiasm, and 2 Broke Girls. She additionally offered voice work in initiatives like Batman: The Animated Collection, The Tick, Barnyard, and A Pup Named Scooby-Doo.

Stewart's last mission was The Dink, a film with Ben Stiller, Mary Steenburgen, Jake Johnson, and Ed Harris that’s at present in post-production.

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