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.

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, who starred on-screen in productions like "Pee-wee's Playhouse" and "It's Always Sunny in Philadelphia," died at age 78 on Friday, Feb. 21 after a quick illness, a spokesperson told CBS News.

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,