“Thanks for 20 years of laughs.
You deserve a standing ovation,” Charlie Day wrote on Instagram.
Day paid tribute to his on-screen mother on Instagram.

Lynne Marie Stewart.Credit:Lila Seeley/Getty
“RIP TV mom,“he wrote.
“Thanks for 20 years of laughs.
You deserve a standing ovation.”

Lynne Marie Stewart and Danny DeVito on ‘It’s Always Sunny in Philadelphia’ in 2017.Patrick McElhenney/©FXX/courtesy Everett Collection
Patrick McElhenney/FXX/courtesy Everett Collection
Elvira, a.k.a.
“One of the kindest, sweetest, funniest women who ever lived.
The iconic Miss Yvonne ofPee-wees Playhouse: Shell always be ‘the most beautiful woman in Puppetland.'”

Lynne Marie Stewart and Paul Reubens in ‘Pee-wee’s Playhouse’ in 1989.Brian D. McLaughlin/Michael Ochs Archives/Getty
Paul Feig, who worked with Stewart onBridesmaids, alsoshared his memoryof the actress on social media.
Lynne was the best,” he wrote.
“I was such a fan of hers and it was such an honor to work with her inBridesmaids.
A truly wonderful hilarious person.
You will be missed, Lynne.”
Stewart’s first screen credit came withJack Nicholson’s 1971 directorial debutDrive, He Said.
Stewart worked with Williams on several episodes ofLaverne & Shirley, playing an assortment of side characters.
Brian D. McLaughlin/Michael Ochs Archives/Getty
Stewart also appeared in all threePee-weemovies, though she did not play Miss Yvonne.