Norrin Radd (aka The Silver Surfer) is a cosmic-being with silver-metallic skin. In the episode "Fate of Destiny!" he became corrupted by the Infinity Sword and the true main antagonist in season 2 became The Dark Surfer.
As the Squad's resident alien, the Surfer is a fish-out-of-water, constantly puzzled and amazed at the strange customs and culture of Earthlings. Like, say, eating. Aldous, for all his innocence, is in hiding. Even as he learns more about this pleasant oasis called Earth, taking in its rivers, mountains and beaches (where he'll be a sensation among the surfer dudes) he's worried that his presence may draw his former master, that world-devouring barrel of laughs called Galactus Actonus Tyrant, into the fray. Aldous stays on Earth because he finds a sense of belonging and higher moral purpose with the team. We will see him adjusting to life on Earth and confronting his fear and shame over the awesome evil he escaped from. The thing is NEVER, EVER try his cooking unless you wish to have food poisoning!!!!!!