Dennis Reynolds is the co-owner of Paddy's Pub, and one of five main characters in It's Always Sunny in Philadelphia, the others being Mac, Dee(his twin sister), Frank, and Charlie. Dennis is vain, selfish, and superficial. He prioritizes his own needs above all else, often causing great harm to others, both emotionally and physically, in the process. He projects an outwardly confident, self-obsessed persona, to a point where he appears to become delusional. Beneath this is an extreme insecurity, and if rejected, Dennis will break down,compete to prove his attractiveness, or turn to rage. Dennis wears concealer and other makeup, dyes his hair when he begins to notice himself graying. He shares an apartment with Mac, often using and manipulating him, though thir relationship is somewhat codependent. Dennis shares an apartment with Mac.