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, a frequent Quentin Tarantino collaborator on films like "Reservoir Dogs" and a veteran actor in "Free Willy" and more, has died at 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 Madsen built a four-decade career with memorable roles in Reservoir Dogs,