Aliases: El Mayo (named after a native Sinaloan tribe), El Rey (The King), The MZ
Affiliation: Sinaloa cartel
Born: Jan. 1, 1948, in Sinaloa
Bounty: $5 million (U.S.), 30 million pesos (Mexico)
What We Know: Zambada reportedly once worked as a furniture removal man before becoming a gangster. He's an old ally and friend of Joaquín Guzmán and appeared on the front cover of Mexico's top newsmagazine Proceso this year. He said in the interview he had one wife and five mistresses and claimed that the army had been close to catching him several times.
UPDATE: Still at large.