The Gladers, designated as Group A, was one of the two groups that participated during the Trials, with the other group being Group B.
The group was all-male for the near entirety of the two years they had spent in the Glade, until the arrival of Teresa Agnes, the first and only female and the last person to arrive in the Maze. The group numbered about fifty to around sixty Gladers upon Thomas' arrival.
The group was led for the majority of its existence by Nick, who was the first person to arrive in the Maze. Sometime after the arrival of Chuck, before Thomas' arrival, Nick died and was succeeded by Alby, his Second-In-Command, as the Leader of the Gladers.
In the Film, there were a total of 40 known Unnamed Gladers, and 49 named Gladers named or seen on the Wall of the Glade.
In the Book, there were 29 known Gladers known throughout the book seen and or mentioned.
History – Books
The Fever Code
The Maze Runner
The Scorch Trials
The Death Cure
The Maze Cutter
The Godhead Complex
History – Films
The Maze Runner
Maze Runner: The Scorch Trials
Maze Runner: The Death Cure
Members of Group A
Books
Films only
Gladers who were only mentioned in the films.