Michael Madsen, whose menacing characters in “Reservoir Dogs” and “Kill Bill” made him a standout in Quentin Tarantino’s films, has died. He was 66.Madsen was found unresponsive in his home in Malibu,

Actor Michael Madsen, a stoic actor who worked with Quentin Tarantino among other directors in various acclaimed films from the 1980s onward, has died, according to his publicist Liz Rodriguez. He was 67.

Actor Michael Madsen, known for his roles in "Reservoir Dogs" and "Kill Bill," has died at the age of 67. Madsen's death was confirmed Thursday by his publicist, Liz Rodriguez. Madsen was found unresponsive Thursday morning at his home in Malibu, California, and is believed to have died due to cardiac arrest, Rodriguez told ABC News.