Red Hulk

The Hulk (Bruce Banner) transforms into a green-skinned powerhouse when enraged, gaining strength as his anger increases. Red Hulk, on the other hand, is General Thaddeus "Thunderbolt" Ross, who becomes a red-skinned version of the Hulk with a more tactical mind, and instead of getting stronger with anger, he emits intense heat. Unlike the original Hulk, Red Hulk retains more of his intelligence and military training.