Thanos will finally get his chance to show how powerful he is in Avengers: Infinity War, and Josh Brolin has returned to set to do even more motion-capture. The Mad Titan has been lurking behind-the-scenes of the Marvel Cinematic Universe since the post-credit scene of The Avengers. After a brief appearance in Guardians of the Galaxy and actually picking up an Infinity Gauntlet after Avengers: Age of Ultron, it will be Infinity War that will see Thanos' power unleashed.

He'll need to get his hands on all six Infinity Stones before he can do that - and has already given up control of two before - but he will surely secure them this time around. Thanos will be a major part of the film and will require a lot from Brolin, which is why he started working on Infinity War months ahead of time... and now, he's back to do even more.

Brolin posted a photo on Instagram of his face inside one of the trailers on or near the set of Infinity War, but it is easy to notice his face is completely covered with dots. The reason for this is so he can do more motion-capture for the role and allow Marvel the ability to bring as much of Brolin's performance as possible, to what will be a completely CGI villain.

Dot day. #thanos @marvelstudios #avengers #imjustanaveragepurpleguylookingforlove #brolintruckingco A post shared by Josh Brolin (@joshbrolin) on

-

Now that filming has been ongoing for multiple months, the majority of Infinity War may be close to being finished filming, but Brolin's arrival at this point should not be cause for concern. If anything, it could be so they could include more of him or simply be to change portions of his dialogue or even Thanos' arc. Kevin Feige previously described Thanos as being the main character in Infinity War so he will certainly have a sizable role, and that's good news considering the amount of build-up he has had to this point.

Thanos' arrival is what the MCU has been building to for five years as of right now and he'll need to reign down destruction and death to make it worth the wait. Speaking of death, Brolin's hashtag states "I'm just an average purple guy looking for love," which could be further confirmation that his motivations will be to court Death, as previously stated in The Avengers post-credits. There has been much speculation that Cate Blanchett's Hela could be the MCU version of Lady Death - whom is the apple to Thanos' eye in the comics - and this quest for love hinted at by Thanos further suggests that could be the case.

NEXT: 15 Marvel Characters Who Have Beaten Thanos

Source: Josh Brolin

Key Release Dates