Adrien Thatcher

Adrien Thatcher is a recurring character in the second and third seasons of Skyfall. After losing both of his parents to the initial radiation wave that sparked the beginning of the harvesting project, he dove headfirst into the initiative to "harvest" the Grounders and create a better world for the denizens of the Mountain. He holds fast to his convictions that he is part of a necessary sin, which makes him an antagonist during the second season. His belief in this "noble" cause leads to him holding off on his own transfusion until it is nearly too late-- during which Jaxon Caldwell releases radiation into the 5th level of the Mountain. Though severely burned, Adrien survives due to his transfusion. Leo Reznor finds him and takes him back to Polis, where he is ultimately sentenced to exile.