Cheetor

Cheetor is the mysterious guardian of the Allspark. Mysterious to the point that no one knows the source of his enormous strength and cat like form. Anyway,turns out being cloaked in mystery makes you very difficult to defeat and even more difficult to buy presents for. Thankfully,he uses his powers to defend the side of good against the Decepticons. He later sacrifice himself to restore Cybertron in Season 3 of Transformers Cyberverse.