Benicio Del Toro's take on The Collector in the Marvel Cinematic Universe really brought out the odd and obsessive nature of the character. With The Collector holding at least one of the Infinity Stones for the Asgardians after Thor: The Dark World, many fans assumed that they would see more of the character in the upcoming Guardians of the Galaxy Vol. 2.
Now it seems that this may not happen, however. While it's unlikely that we've seen the last of the character, it's looking less likely that we'll see him going dealing with Peter Quill and crew in the Guardian's sequel.
Speaking to SuperHeroHype, while doing promotion for director Fernando Léon de Aranoa’s A Perfect Day, Del Toro revealed that Marvel hasn't contacted him about appearing in Guardians of the Galaxy Vol. 2. When asked if he was involved with the upcoming Marvel sequel, Del Toro replied:
"I don't think so... they would have told me, I hope. I do hope to play that character again at some point."
In the comics, The Collector is one of the most powerful beings in the universe. Being almost as old as the universe itself, he collected the greatest achievements from the planets he visited in hopes of being able to repopulate the universe after a great catastrophe. It's clear that the MCU version of The Collector takes his mission very seriously, obsessively collecting objects of power and rarity, while seeming to care little for the world outside of his collection. It's unclear if Del Toro's version of the character shares his comic counterpart's immortality and overall power, however.
It seems all but a given that The Collector will appear again before The Avengers: Infinity War since he still possesses one of the Infinity Stones that Thanos will have to collect for the Infinity Gauntlet. While it's possible that Thanos could acquire the stone off-screen, it seems unlikely that The Collector wouldn't at least put up a fight to keep an object in his collection. He could even still get a cameo in Guardians of the Galaxy Vol. 2, since the cast of that film is still coming together and a short cameo would be more a matter of working it around Del Toro's schedule than anything else.
Still, a number of fans may likely be disappointed that he apparently won't play a big part in the sequel, if he appears at all. Of course, it's possible that fans will barely notice when the film is finally released as the appearance of Star Lord's father may overshadow missed opportunities for The Collector anyway. We'll just have to wait until 2017 to see.
Captain America: Civil War will release on May 6, 2016, followed by Doctor Strange– November 4, 2016; Guardians of the Galaxy 2 – May 5, 2017; Spider-Man – July 28, 2017; Thor: Ragnarok – November 3, 2017; Black Panther – February 16, 2018; The Avengers: Infinity War Part 1 – May 4, 2018; Ant-Man and the Wasp – July 6, 2018; Captain Marvel – March 8, 2019; The Avengers: Infinity War Part 2 – May 3, 2019; Inhumans – July 12, 2019; and as-yet untitled Marvel movies on May 1, July 10 and November 6, 2020.