Vegeta

Even though he is evil at heart, Vegeta is perhaps one of the most strong-willed characters in the series. Like Son Goku,
             he is extremely industrious, constantly striving to be better, but different purposes drove Vegeta's spirit. Goku fought to
             defend the lives and others and to challenge his limitations while Vegeta fought to satisfy his bloodthirsty appetite and die
             hard pride, which is unwilling to accept defeat. This gradually changes throughout the series.

                 The primary driver of his will is Son Goku. Vegeta's defeat in his first encounter with Goku and his unwillingness to accept
             Goku being more powerful had constantly fuelled his strong will to continue to train himself. After seeing Goku turn into
             Super Saiyajin and defeating Freeza, he grew even more jealous of Goku’s achievements and immersed himself in intensive
             training. After much sweat and frustration, he finally became Super Saiyajin. He only enjoyed a fleeting moment of pride in
             destroying #20, before being defeated by #18.

                 Vegeta’s first catharsis occurred during Son Gohan’s battle with Cell. Because of his rash decision to attack Cell when he
             did not have the power to, had caused Gohan’s arm to be seriously injured when Gohan saved his life. Not only was he not
             even close to Cell’s ability, but also served as a hindrance to Gohan. That was the first time Vegeta accepted his
             incapabilities by making an apology to Gohan.

                 By the time Majin Buu appeared, what used to be a cold-hearted Vegeta changed. Right before he proceeded to sacrifice
             his life in an attempt to destroy Buu, he told Trunks that he cared about him and how he felt bad about giving Trunks much
             less attention then Trunks deserved.

                 During Son Goku's final battle with Majin Buu, Vegeta goes through a complete catharsis. He realized that Goku's pure
             and kind heart gave Goku the power that Vegeta never had. He finally realizes that the good ultimately prevails.