Starscream is a Cybertronian from Cybertron. Starscream is an intelligent and personable scientist who acts as Megatron's main science guy and second-in-command, and constantly peppers his sentences with (genuine and effusive) admiration for his great leader. In fact, Starscream may be his commander's greatest advocate. Even when Megatron has lost faith in himself, Starscream is there to support him. His faith isn't the blind faith of a zealot, but the earned trust and loyalty of a comrade.