When seen last, Thomas was of average height, with mid length unkept hair of light brown color. He was dressed in traveling cloths, and had clearly been on the road for weeks, maybe months. His eyes are a captivating green color, and he has a knack with conversation.
Thomas is an enigma. His origins are unknown and closely guarded. What is known about Thomas is that he is a wanderer, "a lover not a fighter," and he is strongly motivated to stay away from the Wall.