He is an eight-time Cruiserweight Champion, a seven-time Tag Team Champion, a Royal Rumble winner and a former World Heavyweight Champion.
He is considered the Ultimate Underdog of the WWE, and for almost 20 years, he has continued to wow crowds all over the world with his lucha libre style.
From his early days in WCW, everyone knew that there was something special about this little guy. The reason he's called an Ultimate Underdog is because of his first and only World Heavyweight Championship victory against arguably two of the biggest names in professional wrestling, not to mention the fact that almost every one of his opponents have been between 6'5 and 7'4!
Outside the ring, he is Oscar Gutierrez...but we all know him as Rey Mysterio.
Here now is the story of The Prince of Mystery.
Everyone knows the original ECW. You know it because it was all about the bloodthirst and carnage one lifetime ago. But in 1995, the original Land of Extreme was introduced to a new form of professional wrestling: Luchador.
Misterio (Before the 'i' was replaced with a 'y') faced Psichosis in a match on ECW. After one last battle on ECW in a Mexican Death Match at ECW's November to Remember, Misterio went to WCW where he would become a leader of the Cruiserweight Revolution.
Three weeks after his WCW debut, Mysterio defeated Dean Malenko to win his first Cruiserweight Championship. He held the strap for three months before losing at Halloween Havoc to "The Man of 1000 Holds."
Following a feud with Chris Jericho in 1998, Mysterio was approached by the Latino World Order, led by longtime friend Eddie Guerrero.
After losing a stipulated match to Guerrero, Mysterio was forced to join the LWO. In the process, the nWo split into two factions: Hollywood (led by Hogan) and Wolfpac (led by Kevin Nash).
The two orders had one common bond: Disbanning the LWO for good. In the process of the battle, Mysterio lost a match to Kevin Nash.
The problem was that it was a "Hair vs. Mask" match. The "Giant Killer" lost the battle and his mask, and for the duration of his career in WCW, young Rey went without his mask. Though disappointed, he never steered away from competition.
Without the Cruiserweight Championship or the infamous mask, Rey Mysterio was left with only one alternative: To Fight Back.
Though he spent the majority of his final days with WCW without his mask, out of respect for the luchador style, I will not show Mysterio unmasked.
Before the summer of 1999, Mysterio had won both the Cruiserweight and WCW Tag Team Championships. Despite his size, Mysterio was still considered a Giant Killer due to his victories over Kevin Nash, Scott Norton and the late Bam Bam Bigelow.
But back to the action.
Mysterio joined forces with Konnan to form The No Limit Soldiers (led by Hip Hop Mogul Master P) in a feud with the West Texas Rednecks (who were infamous for their "Rap is Crap" song).
Following P's departure from WCW, Mysterio joined forces with Eddie Guerrero and Billy Kidman to form the Filthy Animals.
After being sidelined with another injury, Mysterio returned in the spring of 2000 to pick up where he left off. After winning the WCW World Tag Team Championships one last time, he joined up with Kidman once more and won the WCW Cruiserweight Tag Team Championships on the final broadcast of WCW Nitro before WWE's acquistion.
That was the last time that anyone saw Rey Mysterio...that is until 2003...
In June 2002, we started see promos hyping the arrival of the "Giant Killer" to World Wrestling Entertainment. He finally made his appearance to the WWE, where he defeated rival Chavo Guerrero.
A short time later, he teamed with John Cena and Edge (yes, the two actually liked each other one lifetime ago) in a storyline involving the three against the Un-Americans (William Regal, Test, Christian and Lance Storm).
Following the brief storyline, and short battle with Kurt Angle, Mysterio would join forces with Edge to defeat Angle and Chris Benoit to snag his first ounce of gold in the WWE, the WWE Tag Team Championships.
After losing the gold to Los Guerreros (Chavo and Eddie Guerrero), Mysterio began focusing on the Cruiserweight Championship and a storyline involving Mr. Era of Mattitude, Matt Hardy.
After a lengthy rivalry, Mysterio finally defeated Hardy to gain the gold in June of 2003. On New Year's Day in 2004, Mysterio defeated Tajiri to lay claim to the Cruiserweight Championship for the second time.
Mysterio would later on challenge Eddie Guerrero for the WWE Championship following WrestleMania XX. Though he lost, he and Eddie's moments together would be far from over.
Following several reigns as Cruiserweight Champion (including a record setting eighth reign after defeating Chavo Classic), Rey returned to tag team wrestling, and alongside Rob Van Dam, he won yet another WWE Tag Team Championship.
Following Van Dam's injury, Mysterio teamed with Eddie to win the gold from The Basham Brothers at No Way Out. At WrestleMania 21, the duo faced each other in arguably one of the best matches in WM History.
The two had some fierce battles during their war, but it was a devastating Twist of Fate that would turn Rey Mysterio into the biggest hero in WM History...
On November 13, 2005, just a few days after a SmackDown taping in Minneapolis, Eddie Guerrero was found dead in his hotel room in Minnesota. The following week, four individuals made it their business to remember their fallen comrade.
Chris Benoit, Batista, Chavo Guerrero and Rey Mysterio spent the week giving comments about their friend and participating in a series of matches thereafter.
At the 2006 WWE Royal Rumble, Rey entered the Rumble second and outlasted both Triple H and Randy Orton to win the Rumble and earn a shot at the World Heavyweight Championship at WrestleMania 22.
The night before the pay per view, Mysterio joined Benoit and Guerrero to induct Eddie Guerrero into the Hall of Fame. Alongside Eddie's widow, Vickie, the WWE Universe paid homage to Latino Heat.
In the triple threat match between Randy Orton and Kurt Angle, Mysterio defeated Orton to hoist his first (and to date, only) WHC. Following the battle, Rey celebrated with Chavo and Vickie at the entrance way as Rey gave complete tribute to his fallen comrade at The Grandest Stage of Them All.
After a few months of feuding with JBL, even "retiring" JBL, Mysterio lost the gold to King Booker at The Great American Bash. Following a rivalry with Chavo, Mysterio would be sidelined with an injury following an "I Quit" Match with Guerrero.
After a few sporadic feuds and several shots at the World Heavyweight Championship, Mysterio continued shocking naysayers with victories over Kane, Mike Knox, even then champion, Edge.
But it was at the 25th Anniversary of WrestleMania that Mysterio's proudest moment (besides winning the WHC) came.
Thanks to the request of JBL, Rey was once again put in the spotlight. The reason? JBL wanted his last match to be against either Eddie Guerrero or Rey Mysterio.
In 21 seconds, Rey defeated JBL to add another notch to his successful career: Intercontinental Championship. A week after WrestleMania, Mysterio was the final draft pick to SmackDown in the annual WWE Draft.
So to recap the impressive career of the Ultimate Underdog:
8-Time Cruiserweight Champion, a record (Five in WCW & Three in WWE)
Former WCW Cruiserweight Tag Team Champion
7-Time World Tag Team Champion (Three in WCW & Four in WWE)
2006 Royal Rumble Winner
Former World Heavyweight Champion
When Rey officially retires, there's no question that he will be in the Hall of Fame. If not for his many accomplishments, then for his undying loyalty to his Mexican Wrestling (Lucador) heritage as well as the anonymity that comes with wearing the mask.
In my opinion, Eddie would be proud of how far his best friend has become since their days in Latino World Order and the Filthy Animals.