Latino Review broke the story and Variety confirmed it in a matter of hours. Chalk up another rumor being right to Latino Review. Yes, the eldest Goonie, Josh Brolin, has been tapped to play Thanos in the Guardians of the Galaxy. Thanos was first seen after the credits in the original Avengers film. The size of his role and his involvement in Guardians of the Galaxy remains to be seen. It has yet to be revealed if Brolin will be dawning a costume or just supplying a voice.
We will keep an eye open for an official statement from both Marvel and Disney!