Variety and Latino Review have both recently reported that actor Josh Brolin has been cast as Thanos for ‘Guardians of the Galaxy’ and quite possibly Avengers 3, neither Marvel nor Brolin have confirmed this.
It is being said that Thanos will play a small role in Guardians, as Ronan the Accuser will be the movie’s main villain. Thanos’s appearance is likely to set up for any part he may have in Avengers 2 and ultimately leading to a main villain role in Avengers 3.
It is unknown at this point if whether Brolin will just do the voice acting for Thanos or if he will do motion capture as well.
‘Guardians of the Galaxy’ is set to release August 8, 2014.