In The Maze Runner, Chuck tells Thomas that he was around five foot nine and also describes him jokingly as being as "ugly as fried liver on a stick". He tells Thomas that he looks sixteen years old. Thomas has always been an inquisitive person, before and after being sent to the Maze. He has a habit of becoming frustrated when answers are kept from him, something he experiences regularly. In The Maze Runner, Thomas starts off as timid and somewhat aloof but steadily grows bolder and more social