The roster covers the four full-length main-series action RPGs: Mass Effect, Mass Effect 2, Mass Effect 3, and Mass Effect: Andromeda. It excludes the Galaxy and Infiltrator mobile spin-offs, downloadable expansions, remasters, and compilations. The roster covers 24 recognizable protagonists, squadmates, allies, and villains from the original trilogy and Andromeda. It excludes most minor characters and squadmates who appear only in downloadable expansions. Name the games and characters, identify character art, and tackle real trivia. Source: Wikidata (series membership P179/P527, release dates P577), corroborated against Wikipedia.