Ken Masters is a character in Capcom's Street Fighter fighting game series. The character was first introduced in the 1987 title Street Fighter as an alternate fighter to Ryu. While Ryu is devoted to testing his power, Ken instead focuses on developing a family with his wife Elisa. Ken becomes a mainstay in the following Street Fighter games. An alternate brainwashed version of him, Violent Ken (暴力的なケン), has also been featured in a few of his appearances. Ken's presence is in several sequels to the Street Fighter series in addition to its related media. He has also made crossover appearances in Namco × Capcom, Project X Zone, and Super Smash Bros.