Kickback

Kickback is one of the most charming, likable beings anyone is ever likely to meet. He collects friends the way others do energon cubes. Scratch the surface, though, and you find a manipulative blackmailer that loves digging up dirt on his teammates to force them to work for him. Humans are particularly likely to fall prey to his honeyed words. In insect mode his super-charged legs allow him to jump great distances and kick through solid steel, though he is vulnerable in that mode when attempting to fly through high winds.