Chang Wufei es un personaje ficticio de New Mobile Report Gundam Wing.
Wufei is a conflicted character. While he remains calm in many situations that would concern his fellows, he's also prone to angry emotional outbursts in response to many things, such as conflict idealogies and the gender of his opponents. He tends not to care what others think of him or his ideas and takes direct action even when he is uncertain.
Wufei is a fierce warrior descended from a long, proud clan of Chinese warriors, and thus despises weakness in character and body, in others and in himself. He has a particular and strict sense of honor, as is seen when he agreed to exit his Gundam and duel Treize on his vessel, a vessel he easily could have destroyed from a distance. When defeated, he admitted this and did not use his Gundam to kill the man who had bested him.
As evidenced in Episode Zero, when he was younger he was calmer and much more cerebral, but his unwillingness to fight resulted in the death of his wife Meilan, a strong girl who took the responsibility of protecting the colony (and the newly-built Shenlong Gundam) onto herself and was killed in battle. Wufei then chose to carry out her path of justice in honor of her sacrifice.
Wufei refuses to fight those he sees as weak, such as pacifists, women and children.
While all the pilots turned against the original Operation Meteor, Wufei is the only one who was not assisted by his respective scientist, Master O, rebelling against his clan's elders on his own, for what he saw as an injustice, claiming he could take down all the evil in space by himself.