Woo, fighting games! My favorite genre!
There was a guy who worked for Capcom of America named Seth Killian a few years ago. At the time, Capcom of Japan considered Street Fighter entirely dead. Capcom Fighting Evolution had sold abysmally and Capcom figured that people just weren't interested in fighting games anymore. Seth convinced Capcom that, if an Xbox Live Arcade version of SF2 Hyperfighting sold well, to consider making a new Street Fighter. Well, Capcom released it back in 06 and it became the #1 selling XBLA title that far.
Anyway, Capcom named the final boss character in SF4 after Seth Killian for his work in convincing everyone that people were still interested in fighting games. Supposedly, Seth Killian was surprised and upset that they named a character after him without bothering to ask. Cest la vie.