Ender: Is the third youngest brother his real name is Andrew Wiggin, Ender is just his nickname. Ender has always been different he has always been special. Hes special because he is a third, his family is the only family that can have a third child. Shy but brilliant, he wins any game he plays. He is joining the International Fleet to fight against the Boogers.
Valentine: Is the second youngest and only sister of Peter and Ender. She is sweat, careful, worried person, and caring. She loves Ender.
Peter: Is the oldest brother of Ender and Valentine. He is a two face he is tough from the outside but loving from the inside. He is a very mad and violent person.
Major Anderson: She is a military psychologist from the international fleet. She also specializes kids into soldiers. She also monitors the mind games.
Mazer Rackham: He was a International fleet pilot. He covers his face as a way to be connected with his father that he lost in the first Formic war. He becomes Ender's monitor.
Colonel Graff: He is the principal of battle school and a friend of Ender.
Stilson: He likes to bully people smaller than him and is really aggressive.
Bernard: He has always been a great soldier but thanks to Ender he knows what it takes to become a great man. But he is also a good example of Stilson.
Bean: Is the smallest cadet at Battle school, but he's got a big mouth and an even bigger brain. He grew up on the streets, which is where he earned his nickname. As the youngest of the street kids he ran with, people figured he "wasn't worth a bean."
Alai: Recruited from Persia at age fourteen, Alai gets off to a rocky start at Battle school . He pukes on the shuttle, making him a target for some of his fellow students. Alai has a dignity and an unbreakble spirit, and he refuses to be dettered from his goals.
Dink Meeker: A natural-born talent, Dink Meeker lets his actions on the battlefield speak louder than words. Dinks strategies are the key to his army's victories, but he prefers to let his commander take the credit. Dink has already turned down two promotions.
Petra Arkanian: One of the only girls at Battle school, Petra is a headstrong outsider who fights twice as has to prove herself. She earns respect in the Battle Room with her exceptional skills as a sharpshooter.
Bonzo Madrid: A Battle Room superstar, Bonzo uses fear and intimidation to lead his troops. What he lacks in size he makes up for in fierceness and intensity. He has his own Salamander Army which rules the top of the scoreboard.