LOS ANGELES — Michael Madsen, the actor best known for his coolly menacing, steely-eyed, often sadistic characters in the films of Quentin Tarantino including Reservoir Dogs and Kill Bill: Vol. 2, has died.

Michael Madsen, whose menacing characters in Reservoir Dogs and Kill Bill made him a standout in Quentin Tarantino's films, has died. He was 67.

Actor Michael Madsen has died after being found unresponsive at his Malibu home Thursday morning. He was 67. Known for portraying complex tough guys and as a frequent collaborator of director Quentin Tarantino,