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

"Sideways" icon Virginia Madsen is leading the tributes to her brother, "Reservoir Dogs" and "The Hateful Eight" actor Michael Madsen, who died Thursday at the age of 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.