We got our first look at Thanos (aka The Mad Titan, Avatar of Death) in a tag scene at the end of The Avengers, strongly suggesting that the Marvel villain would be making appearances in future films. Now, we have word that none other than Josh Brolin is set to voice the big bad. Fans will likely get their next look at (and listen to) Thanos in James Gunn’s Guardians of the Galaxy, which greatly expands the current Marvel Cinematic Universe beyond its terrestrial boundaries. Logic follows that a villain of Thanos’ proportions (he’s got god-like powers and has attempted to wipe out the human race) would also appear in future films like Avengers: Age of Ultron, with The Avengers 3 a likely place to feature the antagonist. Hit the jump for more.