Shockwave's overall personality would be considered as cold and calculating, with logic as his fundamental basis. It is very difficult to gauge his emotions from looking into his single cold red eye, which comprises his face and head. Though he can be susceptible to moments of emotion, such as anger toward Starscream abandoning him to his fate or to the mercy of the Autobots, logic still dictates his actions overall. His loyalty toward Megatron was without question.