the Main Characters

Ender
Ender is the main character in the book that is the third born child of a family. He has a violent, strong brother named Peter and a mild, sweet sister named Valentine. The only true person that Ender loved was Valentine whilePeter was mainly one of the people who bullied Ender and possibly the only one who Ender is scared of. During the days Ender lived in, couples could not have more than two children so Ender had to experience constant bullying from others. Ender is the type of boy who does not want others to look down on him so he knows exactly what to do. Sometimes he can be the kind, gentle boy while in other occasions, he automatically turns ruthless and violent to protect himself. He is both alike in Valentine's and Peter's personality; however, whenever he knows he instinctively becomes like Peter, he becomes stressed and hates himself for being like that. For example, after he beat up Stilson and Bonzo, he felt guilty and depressed for quite a while and the memories kept returning to haunt him.
Ender is the genius that can understand people's minds which leads him to win in fights, whether it is a conversation or battle. At such a young age, he started to direct his own Dragon Army and wherever he goes, there always is something. He thinks immensely carefully and profoundly compared to what a six year old can be; he talks, speaks, and thinks almost like an adult. As his life progresses in Battle School, he knows that he is constantly manipulated and pressured by the teachers. However, he realizes that the manipulation is necessary and that he has to play the games. Ender is extremely intelligent in many ways which leads him to be the hero of the world . Even though he is supposed to be elated and proud of himself, he is not and keeps stressing over his murderous mind. When Ender finds a queen cacoon and his compassion leads him to repay his destruction and faults to the buggers, I think he finds his true happiness with Valentine.
Even though Ender is a nice, smart guy, I don't really like him because he's too perfect and seems to barely have affection towards others except Valentine. In my opinion, Ender reveals to us that there are times when we are forced to do something important and we feel depressed over what we are doing and just want to give up. However, this experience can be a lesson for us and that it will truly help us earning our true bliss of the world.

Valentine
Valentine is the sweetest and mildest of all the 3 siblings. She truly loves Ender with all her heart and is the only one that actually feels that way. She knows that Peter owns a ridiculous, violent mind that threatens to kill her and Ender which leads her to be always protective her younger brother with all her heart. Even when Ender was gone to Battle School, she secretly celebrated his birthday and helped save Ender a couple times from a mental breakdown. She only thinks good of him and always is compassionate towards most things.
As Valentine lived in Earth with Peter, she decides to plan with him to change the political world of the earth. Having an incognito Demosthenes, she turns out to write better than Peter and influence many people. As time passed, she gradually earned more and more power as she also worked under Peter's orders. She actually liked the control and saw no reason why she would want to stop her job as Demosthenes and a writer. However, she eventually did not fall for the total power Peter wanted but worked with Ender to colonize the bugger worlds to make a free, real land.
Valentine is one of my favorite characters in the novel. She is so sweet, compassionate, and especially towards the end she was so confident, sure, and righteous. In my opinion, she reveals to me that loyalty, love, and faith will always last till the end, no matter what changes you are going through.

Peter
Peter is the oldest sibling among the three and without doubt, the most violent and and brutal. He has absolutely no morality but is fascinatingly good at manipulation; he even influenced Valentine to work with him. Killing Ender and Valentine was probably a choice that he could have done. His self-centered mind only acts to benefit himself and use other people to satisfy him. He never thinks about others and always has this dark, deep, corruption inside of him that works together with his intelligence. While he acted as Locke, his greediness for immense world power eventually leads him to becoming the Hegemon. However, he does that through the Locke proposal which is barely like him at all.
Obviously, I don't like Peter. He's way to greedy and self-centered. How can he think of killing his own siblings? I wonder how if he even felt a tinge of compassion or guilt right before he died. Oppositely from Ender and Valentine, Peter reveals to me a dark, evil side of the world. He represents how people's greeds have no limitations.

Colonel Graff
Colonel Graff was the head of Battle School who mostly expected something from Ender. He was the one who constantly manipulated Ender and stressed him to the top that even I felt stressed reading. However, regardless of the depressing jobs he assigns to Ender, he still loves him very much. He was with Ender from the beginning of Battle School to the end of battles. I think Graff was a serious workaholic; he never seemed to rest. Plus, he got fatter every time and he never cared about his appearances.
Graff was an okay guy. To me, he just seemed so hostile whenever he said he will pressure Ender more and more. He should have thought more about Ender's feelings and not only about his concerns. Nevertheless, he became better towards the end when I saw the deep, affectionate feelings he actually had. Graff reveals that the diligent, passionate workers of the world that eventually earn what they worked for.