Cheers Quiz

Every performer who was credited as a series regular on the NBC sitcom set in a Boston bar, in at least one of its eleven seasons. That is the whole rule: one season in the opening titles is enough, so the cast the show started with in 1982, the replacements written in after it, and the ones promoted from recurring to regular later in the run are all in. Performers who stayed recurring for their entire time on the show are out, however many episodes they appeared in and however well you remember them, and so are guest stars. Only three people were regulars for all eleven seasons, so a rule that asked for all eleven would leave seven famous faces off the board, and this set does not use one. The answer is always the actor, never the character. A surname on its own counts. Cast order follows the series infobox starring list, corroborated against Wikidata.