Carrera began working for the Mexican wrestling promotion World Wrestling Association (WWA), where he teamed up with Aguila del América and Kiss to win the WWA World Trios Championship from Bill Anderson, Louie Spicolli and Tim Paterson (masked as Los Mercenarios Americanos) on December 12, 1991;[4] this was Carrera's first title victory.

[5] During 1991 Carrera began working in Japan for Frontier Martial-Arts Wrestling (FMW) where he was billed as "Amigo Ultra", to avoid any legal problems over the "Ultraman" trademark.

On December 7, 1993, Demian begins a society with The Sheik and Sabu wrestling against Onita, Sambo Asako and Mr. Gannosuke in Chiba's Choshishi Gym.

In March, 13, the trio was defeated by Mr. Pogo, Goro Tsurumi and Hideki Hosaka in the Heiwajima TV Theater in Tokyo.

Damién 666's ring persona earned him the nickname La Bestia del Apocalipsis (Spanish for "The Beast of the Apocalypse").

The following month, at A Matter of Respect, he faced El Puerto Riqueño, with the bout ending in a no contest after Sabu attacked both men.

[9] In the fall of 1996 Carrera was one of the many Mexican Luchadors brought in to work for World Championship Wrestling (WCW) to bolster their Cruiserweight division.

When Eddie Guerrero formed the Latino World Order (lWo) Carrera was one of the Luchadors that joined, but never made much headway in the group.

[12] Later in 2003 Mexico's Most Wanted defeated The Aerial Express (Quicksilver and Scorpio Sky) to win the vacant Revolution Pro Tag Team championship, which they held for nine months.

[13] In 2002 Damián 666 and Halloween began working for Consejo Mundial de Lucha Libre (CMLL), Mexico's largest and the world's oldest wrestling promotion.

La Familia banded together to defeat Los Nuevos Infernales, the team of El Satánico, Averno and Mephisto, to win the Mexican National Trios Championship on September 27, 2002.

During Halloween's injury Damián 666 began teaming regularly with fellow Perros del Mal member Mr. Águila.

[21] On June 18, 2011, at Triplemanía XIX, Halloween, Damián 666 and X-Fly defeated Los Psycho Circus in a tournament final to become the first ever AAA World Trios Champions.

[23] After a Perros del Mal Producciones event on August 20, Carrera announced his retirement from professional wrestling as soon as he had fulfilled the rest of his commitments for AAA and various independent promotions.

[30] On April 19, Damián 666's longtime partner Halloween severed his ties with La Familia de Tijuana and returned to Los Perros del Mal.