A member of Ender's Launchy group, Alai is originally Bernard's best friend. Alai comes to appredate Ender's many talents and becomes leader of a group that includes both Bernard's m-group and Ender's outcasts. When Ender gets assigned to Salamander Army, Alai reveals his true friendship in a hug and a whispered "Salaam." "Whatever it meant to Alai, Ender knew that it was sacred; that he had uncovered himself for Ender, as Ender's mother had done, when he was very young." Alai's voice is the first Ender hears when he is finally allowed to work with others at Command School.
Major Anderson assists Colonel Graff in commanding the Battle School. Anderson runs the "games," and is upset when Graff disturbs their rules in order to develop Ender's potential. After Ender's fight with Bonzo, Major Anderson is promoted to colonel and takes over command of the Battle School. After the war, it is implied he will become commissioner of a football league.
The only girl and the best shooter in Salamander Army, Petra possesses enough courage to stand up to Bonzo. She befriends Ender and teaches him her sharpshooting skills. She later commands Phoenix Army while Ender is a member. She is a very good soldier, but cracks under the pressure of the Command School battles anyway. Her collapse reminds Ender he must remember the limitations of his commanders: "As he eased the pressure on them, he increased the pressure on himself."
Bean, the smallest soldier in Ender's Dragon Army, gets Ender's attention immediately by demonstrating his quick adaptation to instructions in the Battle Room. Not only is Bean smart, he is cocky and rebellious. Recognizing Bean's leadership potential, Ender treats Bean the same way Graff treated Ender—to toughen Bean and force him to separate from the others. Ender recognizes this, however, and thinks of Bean, "When the time is right you'll find that I'm your friend, and you are the soldier you want to be." Bean becomes one of Ender's best soldiers and leads one of his best platoons. Ender later reveals some of his worries to Bean and entrusts him with a special squad of Dragon Army. Bean joins Ender in the final game.
Ender first meets Bernard, a fellow Battle School candidate from France, on the shuttle transport. Bernard targets Ender for punishment because Graff has spoken so highly of him. Bernard attacks Ender on the shuttle, but Ender has adjusted more quickly to the null-gravity conditions. As a result, Ender accidentally breaks Bernard's arm in reaction to Bernard's blows. Bernard and his sadistic friends quickly become Ender's enemies at Battle School. Ender fights back using the computer, and later Bernard becomes one of Alai's group. His resentment continues, however, and he is present during the confrontation with Bonzo in the showers.
"Buggers" is the name humans have given to the insect-like organisms who have twice attacked the Earth. While they evolved on another planet, they could easily have developed on Earth, having a genetic makeup similar to that of Earth insects. They look like Earth insects but have internal skeletons. During the Second Invasion, Mazer Rackham discovered the key to defeating them was to destroy their queen. Their starships represent great technological know-how, but there is no evidence that they use any communication devices. They seem to be able to communicate with each other telepathically. Ender discovers this is...