Before Iron Man came out, few people knew who Tony Stark was. With Guardians of the Galaxy, Marvel is outdoing themselves in terms of obscurity, bringing to the screen a group of characters who never have been adapted before. We'll have to start learning about all of the various characters, though, and here's the first member of the crew to be cast is Drax the Destroyer, and will be played by WWE Heavyweight Dave Bautista.
You'll know Bautista if you were one of the ten people who saw The Man With The Iron Fists, where he played Brass Body, a fighter with a...brass body. It wasn't really a part that enabled him to show off his action chops, if he has any. Who is Drax the Destroyer? He may sound like a villain, but he's actually one of the Guardians themselves, a being created with the sole purpose of fighting Thanos (the guy at the end credits of The Avengers). There's no telling just how close to his origin they'll stay in the film. It'll be interesting to see just who else will be is brought onboard the film in the future.