The sadly deceased Steve Williams is another renowned for being a legit tough guy. Whereas Williams' hard-as-nails reputation often proceeded him, the nickname of Dr. Death only further added to his intimidation factor. Williams was a no-nonsense brawler with incredible strength, but the moniker of Dr. Death made it seems as if he was coming for an opponent's very life and soul. The nickname of Dr. Death actually goes back to Williams' high school days, given to him by a coach after he had to wrestle in a hockey mask. An All-American collegiate football player and an NCAA finalist (losing to future Olympic medalist Bruce Baumgartner), Williams was, to paraphrase Jim Ross, "a legitimate stud." Dr. Death would go on to become one of the most successful foreign wrestlers that Japan has ever seen, and he'd even have a decade-long unbeaten run at one point, although a brief 2004 foray into MMA, at the age of 43 years of age, saw him lose his one and only professional mixed martial arts match. With suplexes aplenty and a smash-mouth, hard-hitting style, anybody stepping into the ring with Dr. Death needed to up their game otherwise this Colorado native would take them to school. Williams passed away in 2009 after a battle with throat cancer.