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Inducted on June 24th, 2006 at the TUF Season 3 Finale
UFC 13 Heavyweight Tournament Champion, two-time UFC Light Heavyweight Champion, and three-time UFC Heavyweight Champion, most championship fights in UFC history, oldest fighter to win a championship in UFC history, and the first, and one of only two fighters to win a championship in two divisions in the UFC: Randy "The Natural" Couture.
With the exception of maybe Dan Henderson, there is not a single fighter in history who has been able to maintain success and significance spanning from the early tournament days of the UFC all the way up until this year like Randy Couture has. As recently UFC 129, a then 47-year-old Couture took on one of the most dangerous strikers in the Light-Heavyweight Division. Although a win would have brought with it talks of a title fight with champion Jon Jones, he was instead sent knocked out into retirement, literally.
Yes, there is no other fighter in UFC history with the accolades and accomplishments of Randy Couture, but his failure to come out on top in his rubber-match with fell Hall of Fame inductee Chuck Liddell, when both fighters were still in their prime, puts him at No. 2 on this list (he retired after that fight also).