SpoilerTV Image Archive | Gallery | it-s-always-sunny-in-philadelphia | season-3 | cast-promotional-photos | IT'S ALWAYS SUNNY IN PHILADELPHIA: Cast: Clockwise from Top Right: Glenn Howerton as Dennis, Charlie Day as Charlie, Danny DeVito as Frank, Kaitlin Olson as Sweet Dee and Rob McElhenney as Mac. CR: Jay Silverman / FX

IT'S ALWAYS SUNNY IN PHILADELPHIA: Cast: Clockwise from Top Right: Glenn Howerton as Dennis, Charlie Day as Charlie, Danny DeVito as Frank, Kaitlin Olson as Sweet Dee and Rob McElhenney as Mac. CR: Jay Silverman / FX

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