ACTRESS Lynne Marie Stewart, famous for her role in It's Always Sunny in Philadelphia, has died aged 78.
The heartbreaking news was confirmed by her fellow Hollywood friend Cassandra Peterson.
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She wrote: "My heart is breaking upon hearing the news of my dear friend @lynnestewart78 Lynne Stewart’s passing. 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'."
Heartbroken fans flooded the comments with tributes to the beloved actress.
One fan wrote: "So sorry to hear, sending prayers for peace."
Another person said: "I'm so sorry to hear this!
"She was my favourite on Pee Wee's Playhouse, I wished to be that beautiful.
"And she was so good on it's always sunny."
A third fan wrote: "Heartbreaking news. I loved Lynne."
The American TV star was best known for playing Charlie's mom, Bonnie Kelly, on the long-running series It's Always Sunny in Philadelphia.
Stewart was also famous for playing Miss Yvonne, The Most Beautiful Woman in Puppetland, in several Pee-Wee Herman shows.
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She started her iconic role on the 1981 stage show The Pee-wee Herman Show.
Stewart then played the character when it moved onto CBS as the Pee-wee's Playhouse.
Several heartfelt tributes also referred to her loved TV character.
One person said: "The most beautiful woman in Puppetland & Anyland!"
Stewart also guest-starred in two Disney shows.
She appeared on the Austin & Ally and Good Luck Charlie in 2011.
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