Rex is the only natural born midnighter in the group, a Seer, and can read the lore, which is the history of all Midnighters in Bixby. During the day he wears glasses. Without them he can see the other midnighters and anything touched by Darklings or slithers in a strange focus, while everything else is blurry. Rex loses his need for glasses at the end of "Touching Darkness", after the Darklings turn him into one of them, making him able to go without them during "Blue Noon". He is the self-imposed leader of the group because he is the seer and he enjoys being in control.