Soundwave (Prime)

Soundwave is the spy master of the Decepticons. One of Megatron's earliest followers, and, many believe, instrumental to his rise, he uses his tentacles and a veritable army of Mini-con Deployers to learn everything there is to know about his allies and his enemies. He was never very chatty, but these days, on Earth, he's become near silent, communicating by playing back recordings of other people's conversations. He just sneaks about, patiently looking for Autobot transmissions and creeping you out.