Starscream

Starscream is Air Commander of Decepticon and second in command of Megatron who once scientist and friends of Jetfire but he abandoned his scientific military to join Decepticon ranks as Air commander and second in command under command by Megatron leadership he consume by ambition and he plotting overthrow Megatron to Usurped authority as new leader of Decepticon he suffer had backstabbing personality disorder to make him Betrayed anyone he showed to be ambitious treacherous and backstabbing traitorous who backstab other including Megatron to archive his own ambition.