Child prodigy who saves the world by making the difficult decision and destroying the Buggers' home planet

Child who had his commander recruit Ender to their army because he recognized Ender's innate abilities

Child who taught Ender how to shoot and warned him about a plot to kill him

Ender's brightest and youngest soldier in Dragon Army

Ender's caring and loving sister who is rejected by the Battle School because she is too compassionate

Ender's cruel and sadistic brother who is rejected by the Battle School because he is too violent

Ender's first commander who hates Ender to the point that he tries to kill Ender but Ender kills him instead

Man who destroyed the Buggers in the Second Invasion and later taught Ender to command the fleet

Man who recruits Ender for the Battle School and later accompanies him to Eros

One of the members of Ender's launch group and the friend who bridges the gap between Ender and the other children