Cryotek

Cryotek is a gangster in Cybertron's dangerous criminal underworld. A supply manager who served the Decepticon generals during the Great War, he secretly switched allegiances upon Galvatron's arrival, choosing to back the Unicronian commander during his short life, and quietly keeping the flame since Galvatron's death.

Once a brilliant engineer, he's turned his talents to crime, along with advancing technologies that were outlawed during the Golden Age of Cybertron. He developed bodyframes that, though quite powerful and weapon-laden, qualified as legal for construction or research. His own "cryo-tank" form was as powerful as a scientist could manage without special government clearance. With his bodyguards Buzzbomb and Backslash, Cryotek ran a tight organization that skirted the law, embarrassing the Autobot Command Security Force, who could never dig up any evidence against him.

If there's one thing Cryotek's pride cannot stand, it's his own failures. He treats his underlings harshly, but no less harshly than the standards he holds for himself.