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.

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

Madsen’s career spanned more than 300 credits stretching back to the early 1980s, many in low budget films. He later became a regular performer in Quentin Tarantino’s films.