Mazer Rackman
Colonel Graff
Bean
Peter Wiggin
Ender Wiggin
Shen
Petra Arkanian
Major Anderson
Alai
Valentine Wiggin
Bernard
Bonzo Madrid
Dink Meeker
Rose the Nose
Runs the Battle School and takes a special interest in the battleroom game
Ender's closest friend at Battle School who helps him run his extra practice sessions before Ender becomes a commander
A bully who initially takes charge of Ender's launch group after Ender breaks his arm
Commander of Rat Army whose leadership style is lazy and crass
The pilot who was credited with defeating the buggers during the Second Invasion
Commands the human fleet during the Third Invasion against the buggers
The smallest and smartest member of Ender's Dragon Army
Takes charge of monitoring and preparing Ender from his childhood through the end of the Bugger War
Gains power and influence as "Locke" and eventually becomes the Hegemon of Earth
A member of Ender's launch group who becomes Ender's first friend
Commander of Salamander Army who is killed when he attacks Ender
Helps an older brother in his attempts to gain political power by writing essays under the name "Demosthenes"
A member of Ender's first army who agrees to help him learn how to shoot
Ender's first toon leader; later becomes a friend who tries to stand up for Ender during a lethal fight with another student