In the early 1990's, Alfonso worked for both World Championship Wrestling and the World Wrestling Federation, where he was a referee for The Undertaker and Giant Gonzalez match at WrestleMania IX.
In May 1995, he made his debut in Extreme Championship Wrestling as a "trouble-shooting referee". Introduced by Shane Douglas, he angered many ECW fans with strict enforcement of the rules and disqualifications of wrestlers for such ECW traditions as using steel chairs as weapons.
Alfonso was then stripped of his refereeing duties and took on the role of Taz's manager and helped him on a winning streak that lasted over a year. In the midst of Taz's feud with Sabu, however, Alfonso turned on his charge and aligned with Sabu. Rob Van Dam later took on Alfonso as a manager and formed a tag team with Sabu. Alfonso also led Van Dam to the longest ECW World Television Championship reign in the history of ECW. In 1997, Alfonso fought Beulah McGillicutty.
Alfonso was at the 2005 ECW One Night Stand, managing Sabu and standing in the ring with RVD while RVD delivered a shoot style promo. Alfonso returned at ECW One Night Stand 2006 after Rob Van Dam won the WWE Championship, as he celebrated with him and the rest of the then-ECW Roster.