There is no character explicitly called “McPoyle’s sister” in the show, but here’s the relevant context:
She often communicates through intense staring, guttural breathing, or by mimicking the actions of those around her. Memorable Moments with "The Gang" Despite her appearance, has managed to seduce multiple members of the Gang: it's always sunny mcpoyles sister
Margaret is a prominent member of the McPoyle family , a clan that prides itself on a "pure" bloodline that hasn't bred outside the family for a thousand years. Introduced in Season 2, she is characterized by her: She is a deaf-mute who communicates primarily through
In the chaotic world of It's Always Sunny in Philadelphia , few characters leave as unsettling an impression as Margaret McPoyle a faint mustache
Defined by a thick unibrow, a faint mustache, and greasy pigtails, she embodies the McPoyle family's "clammy" and disheveled look.
She is a deaf-mute who communicates primarily through intense facial expressions, lip-licking, and mimicking the movements of those around her.
into letting him go. He calls her a "stone-cold fox," only to find himself genuinely (and disgustedly) caught up in a sweaty encounter with her.