A Brazilian boy from a very average household with uncanny athletic ability. Inspired by Ken at a fighting tournament, he hits the road in pursuit of his idol. Strictly disciplined by his grandfather (of Japanese extraction), Sean is polite and courteous, but with a burning desire to win. Imitating Ken's style, Sean fights very aggressively but without the cutting edge of Ken's attacks. His style therefore leaves him vulnerable to counter strikes even while he is attacking. He one day hopes to develop his own power moves.