The Marvel Cinematic Universe's Grandmaster and The Collector might meet on the big screen if the actors of both get their wish. Since Benicio del Toro made his debut as The Collector in Guardians of the Galaxy Vol. 1, the Elders of the Universe have been one of the MCU's greatest mysteries. A lot can be inferred from the characters given their comic origins. However, in the MCU, few things are known about the Elders of the Universe, including whether they're even related in some way.