Masahiro Chono is an American-born Japanese-American retired professional wrestler and actor best known for his 26-year stint with New Japan Pro-Wrestling (NJPW). As the leader of nWo Japan, Team 2000 and Black New Japan, he was the promotion's top heel for much of his career, beginning in 1994 when he adopted his yakuza inspired gimmick.

Professional wrestling in Japan has existed for several decades. The first Japanese person to involve themselves in catch wrestling was former sumo wrestler Sorakichi Matsuda. There were subsequent attempts before and after World War II to popularize the sport in Japan, but these generally failed until the advent of its first big star, Rikidōzan, in 1951, who became known as the "father" of the sport. Rikidōzan brought the sport to tremendous popularity with his Japanese Wrestling Association (JWA) until his murder in 1963. Following his death, professional wrestling thrived, creating a variety of personalities, promotions and styles. It has also created a mass of other cultural icons in Japan including: Antonio Inoki, Giant Baba, Jyushin "Thunder" Liger, Tiger Mask, Keiji Mutoh/The Great Muta, Mitsuharu Misawa, and Kenta Kobashi among others. Throughout the years, several promotions have opened and closed, but a few have persisted to remain the most popular and thriving companies: New Japan Pro-Wrestling is currently considered by many as the top promotion.