Carl

Carl is a Glader and Keeper of the Map-makers whose name was seen engraved on the wall of the Glade in the Maze Runner film. His name was not crossed out at the time and therefore was alive when Thomas arrived. His name remained untouched on the wall after the Grievers attack, implying he survived and stayed in the Glade with Gally and eight other Gladers when the others make their escape. He was most likely named after Carl Sagan.