The actor who played Charlie's mother in "It's Always Sunny in Philadelphia" and starred in "Pee-wee's Playhouse" died at age 78 on Friday, a spokesperson for the actress confirmed to CBS News.

Lynne Marie Stewart, known for her work in 'Pee-wee's Playhouse' and 'It's Always Sunny in Philadelphia' has died at age 78.

Pee-wee’s Playhouse" and “It’s Always in Sunny in Philadelphia" actress Lynne Marie Stewart has died at the age of 78, her rep confirmed with Fox News Digital.

Lynne Marie Stewart, a comedian and actress best known for appearing in Pee-wee’s Playhouse and It’s Always Sunny in Philadelphia, has died at 78, according to a report. Stewart’s death was confirmed Friday to The Hollywood Reporter by a spokesperson for her former sketch troupe,