Michael Madsen apparently went into cardiac arrest and was found unresponsive in his home in Malibu, California, on Thursday morning, according to his manager.

Michael Madsen, the 'Reservoir Dogs' actor who worked often with Quentin Tarantino, died at his Malibu home of cardiac arrest, a representative says. He was 67.

Michael Madsen, a frequent Quentin Tarantino collaborator on films like "Reservoir Dogs" and a veteran actor in "Free Willy" and more, has died at 67.