"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.

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

Michael Madsen's sister, Virginia Madsen, shared a moving post about the actor who died on Thursday from cardiac arrest. He was 67. The actress shared a black and white photo of the siblings on Instagram along with a message on behalf of her and their family.