Dark Serpent Mason is the other primary main character in Seas of Iron. He is a werewolf and pirate and one of the original three members of the Omega Elite. He is also Dark Blood's best friend. It is also hinted he was the result of an Intellectaraptor experiment gone wrong. In Episode 5.4 Part 1 he was killed when Schozan sent him flying into the air to be skewered on a metal rod in the post-robocalypse dimension and his mech suit failed to revive him.