Steven Frederic Seagal is an American actor, producer, screenwriter, martial artist, and musician. A 7th-dan black belt in aikido, he began his adult life as a martial arts instructor in Japan where he became the first American to teach in an aikido dojo. He later moved to Los Angeles where he continued teaching aikido. In 1988, Seagal made his acting debut in Above the Law, which is regarded as the first American film to feature aikido in fight sequences. He has appeared in over 50 films.
In 1992, he played Navy SEAL counter-terrorist expert Casey Ryback in Under Siege, a role he reprised in the sequel Under Siege 2: Dark Territory. In 1994, he starred in his directorial debut film On Deadly Ground. During the latter half of the 1990s, Seagal starred in three more feature films and the direct-to-video film The Patriot. Subsequently, his career shifted to mostly direct-to-video productions. He has since appeared in films and reality shows, most notably as the main villain in Robert Rodriguez's Machete, and Steven Seagal: Lawman, which depicted Seagal performing duties as a reserve deputy sheriff.