Gally

"You see what he is trying to do, right? First he breaks our rules and then he tries to convince us to abandon them totally. The rules are the only thing that have ever held us together. Why now are we questioning that? If Alby was here, you know he'd agree with me. This shank needs to be punished."

- Gally

Gally is the main antagonist of The Maze Runner and the anti-hero/supporting protagonist of Maze Runner: The Death Cure. He is the leader of the Gladers that did not trust Thomas, thus he becomes his enemy, except in Maze Runner: The Death Cure.

He was portrayed by Will Poulter in his first heroic role.

The Maze Runner
Gally arrived at the middle of the Glade three years before Thomas came, and became a member of the Gladers in second-command.

Three years later, since Thomas arrived, Gally engages him as a runner.

After the Grievers attacking some Gladers and partially destroying the Glade, Gally takes the responsible on Thomas.

Later, he has Thomas and Teresa Agnes imprisoned. While Gally has Teresa tied and attempting to do so on Thomas, Thomas wakes up and reasons him and the other Gladers about the Glade and WICKED. Gally gave a second chance on Thomas, Teresa, Minho, Frypan, Chuck, Winston, Newt, Clint, Jeff and some others to escape while he decided to stay along with another half of the Gladers instead.

It shows that Gally has been stung in the lab, points a gun (instead of the knife in the book) on them. Chuck gets shot when Minho critically stab Gally throws a spear at him.

Maze Runner: The Death Cure
It is revealed that Gally survived. He teams up with Thomas, Newt and Aris Jones, and the quartor infiltrates the WIKCED headquarter, and managed to crumble WICKED for good.