Teresa is the first and only girl to arrive in the Glade, appearing just after Thomas. She is self-confident, bold, and supports Thomas as they both seek the truth about their connection and purpose in the Maze. Known for her telepathic communication with Thomas, she becomes a crucial ally.

Chuck is one of the youngest Gladers and becomes Thomas’s first friend in the Glade. Known for his talkative nature and practical jokes, he is assigned to look after Thomas. Chuck's loyalty and friendship are significant to Thomas throughout the story.

Alby is the leader of the Gladers and the first person Thomas meets upon arrival. As the oldest and most trusted teen in the Glade, Alby upholds strict laws to maintain order. He struggles with the traumatic knowledge obtained during the Changing, which deeply affects him.

Newt is Alby's second-in-command, portrayed as kinder and more level-headed. He maintains order through work rather than punishment and befriends Thomas. Newt steps up as a leader when Alby is unable to continue following a traumatic experience in the Maze.

Minho is the Keeper of the Runners, responsible for those who explore the Maze daily. Known for his sarcasm and confrontational nature, his leadership is intuitive. Minho becomes one of Thomas’s trusted allies in navigating the challenges they face.

Gally is known for his antagonistic behavior toward Thomas, being cruel and hotheaded. He has undergone the Changing and believes Thomas poses a threat. Gally's actions are driven by his suspicions and dislike for Thomas, contributing to the tension in the Glade.

Ben is a former Runner who experiences violent behavior after going through the Changing. He attacks Thomas due to resurfaced memories and is consequently banished from the Glade. His fate serves as a haunting reminder of the consequences within the Maze.