<P> The series follows `` The Gang '' , a group of five depraved underachievers : twins Dennis Reynolds ( Glenn Howerton ) and Deandra `` Sweet Dee '' Reynolds ( Kaitlin Olson ) , their friends Charlie Kelly ( Charlie Day ) and Ronald `` Mac '' McDonald ( Rob McElhenney ) , and ( from season 2 onward ) Frank Reynolds ( Danny DeVito ) , Dennis ' and Dee 's legal father . The Gang runs the dilapidated Paddy 's Pub , an Irish bar in South Philadelphia . </P>
<P> The series follows `` The Gang '' , a group of five depraved underachievers : twins Dennis Reynolds ( Glenn Howerton ) and Deandra `` Sweet Dee '' Reynolds ( Kaitlin Olson ) , their friends Charlie Kelly ( Charlie Day ) and Ronald `` Mac '' McDonald ( Rob McElhenney ) , and ( from season 2 onward ) Frank Reynolds ( Danny DeVito ) , Dennis ' and Dee 's legal father . The Gang runs the dilapidated Paddy 's Pub , an Irish bar in South Philadelphia . </P>
where is the bar in it 's always sunny in philadelphia
where is the bar in it 's always sunny in philadelphia
South Philadelphia
South Philadelphia