Tomás Díaz Mendoza is a Mexican professional wrestler, better known by his ring name Villano IV (Villano Cuarto). Within the stable Los Villanos, he has wrestled for Universal Wrestling Association (UWA), AAA, and World Championship Wrestling (WCW). While popular and successful in Mexico, he frequently performed as a jobber in WCW. The other sons of Ray Mendoza who have used the name "Villano" include Villano I, Villano II, Villano III (Arturo Díaz Mendoza), and Villano V (Raymundo Diaz Mendoza).
AAA Triplemania XXX: Monterrey
(Villano IV)
WCW World War 3 1996
(Villaño IV)
WCW SuperBrawl VII
(Villaño IV)
WCW Bash at The Beach 1997
(Villaño IV)
WCW Slamboree 1998
(Villaño IV)
WCW World War 3 1998
(Villaño IV)
AAA Triplemania XXX: Tijuana
(Villano IV)
AAA Triplemania XXX: Mexico City
(Villano IV)
AAA TripleMania XXIII
(Villano IV)
WCW Slamboree 1998
(Villiano IV)
WCW Clash of The Champions XXXV
(Villano IV)
WCW World War 3 1997
(Villiano IV)
WCW Thunder
(Villano IV)