The actor was a regular in Quentin Tarantino's films, appearing as menacing characters in a number of the filmmaker's movies.

A ctor Michael Madsen, renowned for his roles in "Reservoir Dogs" and "Kill Bill," has died at the age of 67, according to NBC News. NBC News Los Angeles reported that Madsen was found unresponsive early Thursday at his Malibu home. The TV station said Madsen's manager, Ron Smith, confirmed Madsen died from cardiac arrest.

Michael Madsen was trying to turn his life around right up until the very end. The “Reservoir Dogs” actor, who passed away Thursday, July 3, at 67, was said to be sober before his death despite a yearslong battle with alcoholism, per TMZ.

Michael Madsen’s youngest son, Luke, posted a touching tribute to the Reservoir Dogs and Kill Bill star. “My Hero Wore a Cowboy Hat,” the 19-year-old wrote in an Instagram post, where he shared three photos of himself and his father,

A screen actor since the 1980s, Madsen was best known for tough guy roles, particularly in Quentin Tarantino's films. Along with Tarantino's feature directorial debut "Reservoir Dogs", Madsen appeared in both "Kill Bill" films, "The Hateful Eight", and "Once Upon a Time in Hollywood".

Hollywood is mourning the loss of Michael Madsen after the actor and Quentin Tarantino collaborator died of cardiac arrest.