Michael Madsen, the iconic actor known for his roles in Quentin Tarantino classics like Kill Bill and Reservoir Dogs, died of heart failure at the age of 67, his cardiologist confirmed to NBC4 Los Angeles on Tuesday.
Madsen was found unresponsive in his Malibu, California home on July 3. According to the report, his death was attributed to natural causes, with heart disease and alcoholism cited as contributing factors. Authorities have officially closed their investigation, finding no evidence of foul play.
The Donnie Brasco star had been under the care of a cardiologist who signed the death certificate, meaning no autopsy will be conducted, NBC4 noted.
Madsen’s longtime manager, Ron Smith, previously stated that cardiac arrest appeared to be the likely cause of death.
Born in Chicago, Madsen rose to prominence with his unforgettable portrayal of the violent and volatile Mr. Blonde in Tarantino’s 1992 cult hit Reservoir Dogs. His collaborations with Tarantino would span decades, including standout roles in Kill Bill: Vol. 1 (2003), Kill Bill: Vol. 2 (2004), The Hateful Eight (2015), and Once Upon a Time in Hollywood (2019).
Beyond Tarantino’s filmography, Madsen’s career included memorable performances in Thelma & Louise (1991), Donnie Brasco (1997), and Sin City (2005), securing his status as one of Hollywood’s most recognizable tough-guy figures.
Neither the Los Angeles County Medical Examiner nor the Los Angeles Sheriff’s Department has commented publicly on the matter.