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, who starred in “Reservoir Dogs” and “Once Upon a Time in Hollywood,” among other hit films, has died. He was 67. The actor’s death was confirmed Thursday by his manager, Ron Smith. The cause was reportedly cardiac arrest.

Michael Madsen was a frequent collaborator of Quentin Tarantino, who cast him in one of his most iconic roles, Mr. Blonde (also known as Vic Vega).