Dudley

Dudley is a character from the Street Fighter series, first appearing in Street Fighter III: New Generation. He is a well-mannered English boxer with a disdain for dirty fighting.

Personality
Dudley is polite, gentle, restrained, and always behaves as an impeccable gentleman and has immense respect for all his opponents. While Ryu is often compared to the archetype of a wandering ronin (a samurai with no master), Dudley is certainly representative of a chivalrous knight.

Dudley's personality is quite different during the Street Fighter III series, in which he was far more snobbish and haughty (though this was toned down by 3rd Strike, in which he is more dignified and respectful to his opponents), in the Street Fighter IV series, he lacks this condescending attitude. Due to the order of events (with Street Fighter IV occurring before Street Fighter III), it's implied that he became more snobbish over the years, as well as surprisingly confrontational. In the Street Fighter III series prior to 3rd Strike for example, he calls Ken and Alex a "sissy man" and "an ill-mannered goon," respectively, and apparently delights in beating them up - a far cry from his appreciation for his opponents and voluntarily restraining because of his respect for them. As his attitude is completely different in the Super Street Fighter IV, and was toned down by 3rd Strike, Capcom may have attempted a retcon. It's also possible that his rudeness may have sprung from the theft of his father's Jaguar, since he had a close relationship with his father.

Dudley particularly dislikes truly dirty fighting and rude people, both of which are unacceptable personality traits of Dudley's rival and fellow boxer, Balrog. While Dudley seemingly won't insult any other villain in the series, Balrog appears to be the exception. It is a testament to the more chivalrous and polite aspects of Dudley's nature that, while Balrog is the very personification of everything he hates in life, the most insulting thing that Dudley has ever said to him is that he thought he was "not much of a boxer" in his rival battle win quote, also describing him as a "classless oaf," and an "embarrassment to boxing" if he wins a round with a Super Combo finish.