Everything about the cast of It's Always Sunny in Philadelphia, the sitcom about five awful people who run a South Philadelphia bar. The type-in covers the series regulars only: the performers credited in the opening titles, not the recurring neighbours, relatives, rivals and hangers-on the show is equally famous for. Name the actors (the answer is always the actor, not the character), match each headshot to its name, snap each character to the performer who played them, and that round reaches well past the main five into the show's best-known recurring roles, pick the real regulars out of a grid of same-era sitcom decoys, finish the show's most quoted lines, and answer real trivia about the series. Cast sourced from billing order, corroborated against Wikidata and Wikipedia.