Benicio Del Toro has joined the growing cast of Marvel Studios Guardians of the Galaxy movie, Deadline reports. Del Toros role is currently undisclosed but he will play a character thats going to appear in multiple Marvel films. The only large role thats still uncast - besides Rocket Raccoon and Groot - and will feature across several Marvel films is the big villain that appeared at the end of The Avengers movie - Thanos. Del Toro has played numerous memorable villains in the past and Thanos is a big, high profile role for the A-list actor to play. Its also expected that Thanos will make an appearance in Guardians of the Galaxy, the last movie to appear before the much-anticipated The Avengers 2, where he might feature as the main villain. Plus - he kind of has the right head shape, right? Thanos needs a strong jaw which Del Toro has. I'm just speculating that Del Toro is Thanos but I can definitely see it. Del Toro has recently been cast in Paul Thomas Andersons Inherent Vice and can be seen next in Jimmy P, a film that recently debuted at Cannes last month. Del Toro joins Glenn Close, Chris Pratt, Zoe Saldana, Lee Pace, Michael Rooker, John C. Reilly, Dave Bautista, and Ophelia Lovibond in the James Gunn-directed space-set comic book adventure movie from Marvel Studios. Guardians of the Galaxy is scheduled for release on 1st August 2014.