Lockdown

Lockdown is a bounty hunter who hasn't missed his target ever since he begun his career in bounty hunting. Although his price isn't cheap, his performance is the best in what he does. Even the Decepticons are afraid of this guy, because once he has been hired to track down a subject, nothing stops him from completing his transaction short of total deactivation!

Lockdown is a bounty hunter from Spark. He always fulfills the contracts and missions he is assigned to as long as he is paid. He doesn't really care what he has to do in order to fulfill his contract, eager to destroy entire planets if it's necessary. His respect for other species is not too great either, sometimes mumbling about his own clients and speaking to them sarcastically. Lockdown's most known for his looting the weaponry from the foes he kills, so his armory is constantly changing.

Lockdown seems to have made it personal with Ratchet since stealing his EMP generator during the War for Cybertron.