Serpentine is Lord Brevon's loyal and most powerful mercenary. Unable to resist Brevon's gift of robotic arms, he was infected with a virus that forever enslaved him to Brevon's will. Since then, Serpentine had become part of Brevon's army, rising through the ranks and eventually becoming his top General. As a viper, Serpentine always wished to have arms, so when Lord Brevon first came to him and offered him mechanical arms, he couldn't refuse. Of course, it came with a price; upon equipping these arms, he was infected with a virus that drove him to the point of insanity and made him completely obedient to Brevon's will. Since then, Serpentine had become a fanatic loyalist to Brevon, as well as his most powerful mercenary. However, his loyalty to Brevon, along with his over-the-top ego, are in fact, his biggest weaknesses. In this game, he's part of the Agents of Darkness syndicate, showing his loyalty towards Brevon and working cooperatively with his new allies. He occasionally gives our heroes trouble when they cross paths with him, usually having a giant, deadly fighting robot or some other destructive weapon prepared for the occasion.

He sounds way over the top, can be extremely cocky and extremely trigger happy when in the heat of battle. Can get flustered and outright infuriated when things aren't going as planned.