The Collector (Benicio del Toro), made his debut in a post-credits scene of "Thor: The Dark World," where the Asgardians made the arguably unwise decision to entrust him with the red Aether, or Reality Stone. However, his love of rare, shiny objects came back to bite him in "Avengers: Infinity War," when Thanos arrived in the mining colony of Knowhere to collect said stone.