12 Best It's Always Sunny In Philadelphia Guest Stars
2. Retta
It is fair to say that Retta’s role in It’s Always Sunny is one of the less well-known appearances on this list.
Retta appears in the season 4 episode ‘The Gang gets Extreme: Home Makeover Edition’ - a year before she appeared as Donna in Parks and Recreation. Despite it being just a small role before Retta became well-known for her work on Parks and Rec, Retta plays the comedic straight man perfectly for Charlie and Dennis who are buying materials for their upcoming renovation.
Whilst Charlie explains his purchase of materials for a “Taco Bed”, Retta has the role of explaining that there is no such thing as the “Home Makeover account”.
As with many characters in It’s Always Sunny, Retta perfectly highlights the obvious insanity of whatever the gang is up to.