Deandra "Dee" Reynolds is a fictional character and one of the five main characters on the American sitcom It's Always Sunny in Philadelphia. Portrayed by Kaitlin Olson, the character debuted in the pilot episode, The Gang Gets Racist. Dee is a bartender at Paddy's Pub alongside Mac and Charlie, the fraternal twin sister of Dennis, and supposed daughter of Frank. Together, the group are often collectively known as the "Gang".