12. The Ultimate Warrior (Age: 54)
The Ultimate Warrior was a beast in his heyday. He spent a few years in the WWE (it was WWF back then) before moving to WCW in the year 1998.
He was a two-time Intercontinental Champion and he famously pinned Hulk Hogan in the main event at WrestleMania 6 to win his only World Heavyweight Championship, courtesy of which he was looked at as the Hulkster’s successor in the 90s.
He retired after wrestling just thrice in the WCW. And a decade after that, he wrestled one final time in Spain.
The Ultimate Warrior was inducted into the WWE Hall of Fame Class of 2014 on the 5th of April, following which he made an appearance on the 6th at WrestleMania 30, and appeared on RAW for the first time in 18 years on the 7th.
But unfortunately, he died the very next day on the 8th of April 2014, as a result of a heart attack.