It's Always Sunny In Philadelphia: 10 Cameos You (Probably) Missed
8. Gillian Vigman
Gillian Vigman has a cameo as Karen in Season 13, Episode 5, "The Gang Gets New Wheels." She plays one of the rich women who befriend Dee after they see her driving Frank's Range Rover. This friendship doesn't last long though. Once Karen comments on the fact that Dee has never been married, Dee decides to destroy her. Her revenge doesn't quite work out, when she realizes that it wasn't Karen's boy toy she slept with, it was her underage son.
Vigman is an actress and writer known for movies such as Step Brother and the three Hangover movies. She's also been on TV as a regular in New Girl and Suburgatory.