Overview

• 'Supernatural' actor Mark Sheppard survived six massive heart attacks, having been revived four times.
• Sheppard's heart attacks were caused by a 100% blockage in his left anterior descending (LAD) artery, a condition often referred to as a 'widowmaker' heart attack.
• Sheppard credited his survival to his wife, the Los Angeles Fire Department, and the staff at Providence California St. Joseph's.
• Despite the severity of his condition, Sheppard reported feeling great and expected to return home the day after his hospitalization.
• Sheppard's 'Supernatural' co-stars and other celebrities expressed their support and well-wishes in response to his health scare.