This character was created and shown in the first Transformers TV show, back in the 1980s. His name is Devcon, and he was shown in only one episode in season 2. I always thought he was pretty cool, and I wish they would've brought him back. His story was he was an Autobot Bounty Hunter who hunted down Decepticons and 'brought them to justice' after he left Cybertron during the wars. I always thought that was kind of fascinating, seeing as how the Autobots are supposed to be peaceful and the thought of one of them becoming a bounty hunter was interesting to me.