José Alberto Rodríguez Chucuan is a Mexican-American professional wrestler, professional wrestling promoter, sports commentator, and mixed martial artist, currently signed to the Ultimate Fighting Championship (UFC) as a commentator. He also makes appearances for Lucha Libre AAA Worldwide (AAA) as a wrestler. In professional wrestling, he is best known for his time in WWE under the ring name Alberto Del Rio, and Impact Wrestling under the ring name Alberto El Patrón.

Mil Máscaras is a Mexican luchador and actor. He is regarded as one of the greatest wrestlers of the lucha libre tradition in Mexico – along with El Santo and Blue Demon – and has been described as the first international superstar of lucha libre. Mil Máscaras is considered one of the most influential wrestlers of all time for enhancing and popularizing the lucha libre style around the world, both in the ring and as the star of 20 films. He is also an accomplished artist and cultural ambassador for his native country and has appeared on three of its postage stamps. Although he has never been unmasked and his true identity is generally kept a secret out of respect for lucha libre traditions, his real name is known due to appearing in the credits of the films he has starred in. His ring name is Spanish for "Thousand Masks".