‘Pee-wee’s Playhouse’ star Lynne Marie Stewart dead at 78

Actress Lynne Marie Stewart, best known for her roles in "Pee-wee’s Playhouse" and "It’s Always Sunny in Philadelphia," has died. She was 78.

Stewart’s rep confirmed with Fox News Digital that the actress died on Friday. 

"Lynne was the most talented woman who loved the craft more than the reward," Stewart’s rep shared. "She was a comedic genius and the most honorable person I have ever known."

'GENERAL HOSPITAL' STAR LESLIE CHARLESON'S CAUSE OF DEATH REVEALED

Lynne Marie Stewart

Stewart’s rep confirmed with Fox News Digital that the actress died Friday.  (Michael Tullberg/Getty Images)

Stewart’s rep shared that the actress had just wrapped up filming "Dink" and "It’s Always Sunny in Philadelphia." She noted that she was "exhausted" in December after taking on several television projects. 

Doctors additionally found a tumor in Stewart, as her rep told her loved ones were all "in disbelief."

The cause of death is unknown. 

HOLLYWOOD STARS WHO DIED IN 2025: PHOTOS

American actress Lynne Marie Stewart beside actor and comedian Paul Reubens in CBS children's TV series 'Pee-wee's Playhouse.'

American actress Lynne Marie Stewart beside actor and comedian Paul Reubens in CBS children's TV series 'Pee-wee's Playhouse.' (Brian D. McLaughlin/Michael Ochs Archives/Getty Images)

Stewart’s friend paid tribute to the late actress on social media with a heartfelt photo. The friends were seen hugging and all smiles.

"My heart is breaking upon hearing the news of my dear friend Lynne Stewart’s passing," actress Cassandra "Elvira" Peterson wrote on Instagram.

"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.’"

APP USERS CLICK HERE TO VIEW POST

Born Dec. 14, 1946, Stewart was raised in Los Angeles. 

Stewart made her film debut in Jack Nicholson’s 1971 film, "Drive, He Said."

She was best known for being an actress and writer for popular film and television shows such as 1987’s "The Running Man," 1973’s "American Graffiti" and "Pee-wee’s Big Adventure."

LIKE WHAT YOU’RE READING? CLICK HERE FOR MORE ENTERTAINMENT NEWS

Stewart portrayed Miss Yvonne in "Pee-wee’s Playhouse" from 1986 to 1990, alongside the star and creator Paul Reubens. 

Stewart portrayed Miss Yvonne in "Pee-wee’s Playhouse" from 1986 to 1990, alongside the star and creator Paul Reubens.  (Brian D. McLaughlin/Michael Ochs Archives/Getty Images)

Stewart portrayed Miss Yvonne in "Pee-wee’s Playhouse" from 1986 to 1990, alongside the star and creator Paul Reubens. 

She additionally worked on the other "Pee-wee’s Playhouse" franchises, including "Big Top Pee-wee" in 1988.

The actress met Reubens in the 1970s at the comedy troupe "Groundlings," where she was a member, according to Extra.

maya rudolph tribute

Other celebrities who paid tribute to Stewart included comedian Maya Rudolph. Stewart portrayed Rudolph’s mother in the 2011 comedy movie "Bridesmaids." (Maya Rudolph/Instagram/Frazer Harrison/Getty Images)

Stewart made several TV appearances on Cindy William’s iconic sitcom "Laverne & Shirley" from 1977 to 1983. She voiced Williams’ character in the animated series "Laverne & Shirley in the Army," and as part of the "Mork & Mindy/Laverne & Shirley/Fonz Hour" in 1982.

CLICK HERE TO SIGN UP FOR THE ENTERTAINMENT NEWSLETTER

Lynne Marie Stewart

Before her death, Stewart’s most recent well-recognized role was in "It’s Always Sunny in Philadelphia" as Charlie Kenny’s mother, Bonnie.  (Lila Seeley/Getty Images)

Other celebrities who paid tribute to Stewart included comedian Maya Rudolph. Stewart portrayed Rudolph’s mother in the 2011 comedy movie "Bridesmaids."

Rudolph shared on her Instagram Story a signed photo of Stewart dressed up as Miss Yvonne. She added pink heart emojis to her tribute.

Before her death, Stewart’s most recent well-recognized role was in "It’s Always Sunny in Philadelphia" as Charlie Kenny’s mother, Bonnie. 

Related Posts

Heather Rae El Moussa and Christina Haack’s Friendship Is ‘Getting There’ After Bonding on ‘The Flip Off’ (Exclusive)

Heather Rae El Moussa exclusively told Us Weekly that she’s making progress on her friendship with husband Tarek El Moussa’s ex-wife, Christina Haack. “I think friendship is…

Josh Hartnett Had Something to ‘Prove’ as a 40-Something Action Star — But a Rom-Com Is Still Coming (Exclusive)

Add Josh Hartnett to your list of hot action stars. In Fight or Flight, which hit theaters on Friday, May 9, Hartnett plays down-and-out ex-Secret Service agent…

Mick Jagger Fiancée’s Melanie Hamrick Sheds Light on Keeping Things Private (Exclusive)

Melanie Hamrick may be engaged to one of the most famous rock stars on the planet, but that doesn’t mean she’s willing to treat her private life…

Meghan Markle’s Honest Quotes About Motherhood: All About Her Relationships with Archie and Lilibet

Meghan Markle and Prince Harry have made it clear that, for these two, family is everything. The pair are mom and dad to Prince Archie and Princess…

17 Loose Shirt Jackets That Prove the Wardrobe Staple Isn’t Just for Fall — Starting at $17

Spring and early summer temperatures can make dressing difficult. While a shirt jacket (aka shacket) is typically synonymous with cozy season, we’re here to tell you it’s…

Katie Holmes Wore A Little Black Dress That Turned Heads — This $19 Amazon Version Will Do the Same

Us Weekly has affiliate partnerships. We receive compensation when you click on a link and make a purchase. Learn more! Not all little black dresses are created…