Lynne Marie Stewart as Bonnie Kelly in the season finale of "It's Always Sunny in Philadelphia." Stewart, who first appeared ...

FXX's It's Always Sunny in Philadelphia Season 17 finale paid tribute to the late Lynne Marie Stewart (Charlie's mom, Bonnie ...

Major spoilers below for the Season 17 finale of It’s Always Sunny in Philadelphia, so be warned if you haven’t yet watched ...

Warning: The below contains MAJOR spoilers for It’s Always Sunny in Philadelphia, Season 17 Episode 8, “The Golden Bachelor ...

Frank finds love on the finale, which features the final TV appearance of Lynne Marie Stewart, who played Charlie's mom.

The finale of It’s Always Sunny in Philadelphia season 17 concludes with a heartwarming tribute to Lynne Marie Stewart, who has made a remarkable, enduring impact on the series throughout her 20-year ...

Lynne Marie Stewart, the actress known for roles in Pee-wee's Playhouse and It's Always Sunny in Philadelphia, has died. She was 78.

Lynne Marie Stewart, who had supporting turns in “Pee-wee’s Playhouse” and “It’s Always Sunny in Philadelphia,” has died, her friend Cassandra Peterson confirmed via Instagram Friday ...