Acting · b. 1957 · Tampa, Florida, USA

William Sierra

Biography

William Matthew Sierra is an American former professional wrestling referee and manager better known by his ring name Bill Alfonso. He achieved his greatest success in Extreme Championship Wrestling in the mid-to-late 1990s. He is well known for the whistle that was almost always hanging around his neck, which he blew constantly during his wrestlers' matches 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 tra...

Acting
The Ref Didn’t See It! Bill Alfonso 2025 Battleground Championship Wrestling Presents ECW Reunion Show: A Tribute To The Extreme 2 Bill Alfonso 2024 The WRLD on GCW Bill Alfonso 2022 Battleground Championship Wrestling Bill Alfonso 2021 WrestleCade Supershow 2019 Bill Alfonso 2019 Barbed Wire City: The Unauthorized Story of Extreme Championship Wrestling Himself 2013 WWE: Undertaker 20-0 - The Streak Bill Alfonso - Referee (archive footage) 2012 WWE: Blood Sport ECW - The Most Violent Matches 2006 ECW: Bloodsport The Most Violent Matches Bill Alfonso 2006 Hardcore Homecoming Bill Alfonso (Manager) 2005 MLW War Games Bill Alfonso 2003 MLW Rise of The Renegades 2003 MLW Hybrid Hell Bill Alfonso (Manager) 2003 WWA The Revolution Bill Alfonso 2002 ECW: The Best of Cactus Jack Bill Alfonso 2001 MECW Inaugural Show 2001 ECW Hardcore History Bill Alfonso (Referee) 2001 ECW Guilty as Charged 2000 Bill Alfonso (Manager) 2000 ECW Fan Cam: January 27, 2000 Bill Alfonso 2000 ECW Fan Cam: June 3, 2000 Bill Alfonso (Manager) 2000 ECW Fan Cam: August 25, 2000 Bill Alfonso (Manager) 2000 ECW Fan Cam: September 9, 2000 Bill Alfonso (Manager) 2000 ECW Heat Wave 2000 Bill Alfonso (Manager) 2000 ECW Living Dangerously 2000 Bill Alfonso 2000 ECW Path of Destruction Bill Alfonso (Manager) 2000 ECW Anarchy Rulz 2000 Bill Alfonso (Manager) 2000 ECW: Extreme Evolution Bill Alfonso (Manager) 2000 ECW Fan Cam: May 29, 1999 Bill Alfonso (Manager) 1999 ECW Fan Cam: October 15, 1999 Bill Alfonso (Manager) 1999 ECW Fan Cam: January 30, 1999 Bill Alfonso (Manager) 1999
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