Josh Brolin appears as Thanos in the 2014 film Guardians of the Galaxy. He tries to use Ronan the Accuser to obtain an Infinity Stone. The film also introduces him as the adoptive father of Gamora and Nebula. Sean Gunn stood in for Thanos on set, while Brolin provided the performance capture of the character. Thanos was originally going to have a larger role in Guardians of the Galaxy, but Joss Whedon felt that the character needed to be threaded more gently.
who voices thanos in guardians of the galaxy
Josh Brolin