Tired of the garden variety green Hulk beefcake? Lucky for us Robert sent in these scans featuring Hulks of different hues. The Grey Hulk also known as "Joe Fixit" is an alternate form of Bruce Banner's Hulk, he is a morally ambiguous Vegas enforcer. While Red Hulk (sometimes called Rulk) is the alter ego of Gen. Thaddeus E. "Thunderbolt" Ross, head of the Gamma Bomb project, Bruce's father-in-law & She Red Hulk/Betty Ross's dad. Yeah, they're one crazy family.