It's Always Sunny in Philadelphia Quiz

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 the show's best-known recurring characters to the performers who played them (that round is the recurring roles, not the main five), 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.