William Sierra
Acting
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 traditions as using steel chairs as weapons.n this role, he engaged in a feud with ECW founder Tod Gordon that resulted in several wrestling matches. Since the closing of ECW, Alfonso has appeared in several independent promotions. He worked one match in Xtreme Pro Wrestling as a referee. He has also worked in Elite Wrestling Entertainment as a referee and a manager,as well as managing wrestlers in Squared Circle Wrestling and Pro Wrestling Unplugged.In May 2007, he made his first appearance with Women's Extreme Wrestling, where he serves as a manager and as commissioner. On August 8, 2010, Alfonso took part in Total Nonstop Action Wrestling's ECW reunion show, Hardcore Justice, managing both Rob Van Dam and Sabu during their match against each other. On the following edition of TNA Impact!, the ECW alumni, known collectively as Extreme, Version 2.0 (EV 2.0), were assaulted by A.J. Styles, Kazarian, Robert Roode, James Storm, Douglas Williams and Matt Morgan of Ric Flair's Fourtune stable, who thought they didn't deserve to be in TNA. In October 2002, fellow manager Missy Hyatt sued Alfonso in a case televised on Judge Mathis. She accused Alfonso of damaging her Porsche and was awarded $500. Alfonso is not the only person in his family to have a career in the Professional Wrestling sport, his step brother, former Olympian Bob Roop also spent many years as a wrestler fighting all over the world under a variety of names and gimmicks while his cousin David Sierra has also enjoyed a long career in the ring including a stint in WCW as Fidel Sierra where he is remembered for a controversial feud with Hacksaw Jim Duggan. However, contrary to popular belief, Alfonso is not related to Mike Awesome with whom he spent time with in ECW. The confusion is thought to have stemmed from the fact that Awesome's real surname was Alfonso and the fact that he wrestled in Japan as The Gladiator, a name that Alfonso's real brother Bob Roop also used during his career.
Known for
Acting107
movieGCW: Joey Janela's Spring Break X
2026
Bill Alfonso
movieThe Ref Didn’t See It!
2025
Bill Alfonso
movieThe WRLD on GCW
2022
Bill Alfonso
movieWWE: Undertaker 20-0 - The Streak
2012
Bill Alfonso - Referee (archive footage)
movieHardcore Homecoming
2005
Bill Alfonso (Manager)
movieMLW War Games
2003
Bill Alfonso
movieMLW Hybrid Hell
2003
Bill Alfonso (Manager)
movieWWA The Revolution
2002
Bill Alfonso
movieECW Hardcore History
2001
Bill Alfonso (Referee)
movieECW Path of Destruction
2000
Bill Alfonso (Manager)
movieECW Anarchy Rulz 2000
2000
Bill Alfonso (Manager)
ECW Fan Cam: September 9, 2000
2000
Bill Alfonso (Manager)
ECW Fan Cam: August 25, 2000
2000
Bill Alfonso (Manager)
movieECW: Extreme Evolution
2000
Bill Alfonso (Manager)
movieECW Heat Wave 2000
2000
Bill Alfonso (Manager)
ECW Fan Cam: June 3, 2000
2000
Bill Alfonso (Manager)
movieECW Living Dangerously 2000
2000
Bill Alfonso
movieECW Guilty as Charged 2000
2000
Bill Alfonso (Manager)
ECW Fan Cam: December 17, 1999
1999
Bill Alfonso (Manager)
movieECW November to Remember 1999
1999
Bill Alfonso (Manager)
ECW Fan Cam: October 23, 1999
1999
Bill Alfonso (Manager)
ECW Fan Cam: October 15, 1999
1999
Bill Alfonso (Manager)
movieECW Anarchy Rulz 1999
1999
Bill Alfonso (Manager)
movieECW Heat Wave 1999
1999
Bill Alfonso
ECW Fan Cam: May 29, 1999
1999
Bill Alfonso (Manager)
movieECW Hardcore Heaven 1999
1999
Bill Alfonso (Manager)
movieECW CyberSlam 1999
1999
Bill Alfonso (Manager)
movieECW Living Dangerously 1999
1999
Bill Alfonso (Manager)
movieECW Crossing The Line 1999
1999
Bill Alfonso
ECW Fan Cam: February 6, 1999
1999
Bill Alfonso (Manager)
ECW Fan Cam: January 30, 1999
1999
Bill Alfonso (Manager)
movieECW House Party 1999
1999
Bill Alfonso
movieECW Guilty as Charged 1999
1999
Bill Alfonso
movieECW November To Remember 1998
1998
Bill Alfonso (Manager)
ECW Fan Cam: September 17, 1998
1998
Bill Alfonso (Manager)
movieECW Heat Wave 1998
1998
Bill Alfonso
movieECW A Matter of Respect 1998
1998
Bill Alfonso (Manager)
movieECW It Ain't Seinfeld
1998
Bill Alfonso (Manager)
movieECW Wrestlepalooza 1998
1998
Bill Alfonso
The Best of Shane Douglas
1998
Bill Alfonso (Manager)
ECW Fan Cam: March 7, 1998
1998
Bill Alfonso (Manager)
The Best of The Eliminators
1998
Bill Alfonso (Manager)
movieECW Living Dangerously 1998
1998
Bill Alfonso
movieECW CyberSlam 1998
1998
Bill Alfonso (Manager)
movieECW House Party 1998
1998
Bill Alfonso
movieECW November to Remember 1997
1997
Bill Alfonso (Manager)
ECW Fan Cam: October 31, 1997
1997
Bill Alfonso (Manager)
movieECW As Good As It Gets
1997
Bill Alfonso
movieECW Hardcore Heaven 1997
1997
Bill Alfonso (Manager)
movieECW Born To Be Wired
1997
Bill Alfonso
ECW Heat Wave 1997
1997
Bill Alfonso (Manager)
movieECW Wrestlepalooza 1997
1997
Bill Alfonso (Manager)
ECW Fan Cam: May 16, 1997
1997
Bill Alfonso (Appearance)
ECW Fan Cam: May 3, 1997
1997
Bill Alfonso (Manager)
ECW Fan Cam: May 2, 1997 (Barely Legal II)
1997
Bill Alfonso (Manager)
movieECW Barely Legal 1997
1997
Bill Alfonso (Manager)
ECW Fan Cam: April 4, 1997
1997
Bill Alfonso (Manager)
ECW Fan Cam: March 22, 1997
1997
Bill Alfonso (Manager)
ECW Fan Cam: February 14, 1997
1997
Bill Alfonso (Manager)
movieECW Holiday Hell 1996
1996
Bill Alfonso
ECW Fan Cam: November 23, 1996
1996
Bill Alfonso (Manager)
movieECW November to Remember 1996
1996
Bill Alfonso
ECW High Incident
1996
Bill Alfonso (Manager)
ECW Fan Cam: October 18, 1996
1996
Bill Alfonso (Manager)
movieECW Ultimate Jeopardy 1996
1996
Bill Alfonso
movieECW Natural Born Killaz
1996
Bill Alfonso (Manager)
movieECW The Doctor Is In 1996
1996
Bill Alfonso
movieECW Hardcore Heaven 1996
1996
Bill Alfonso
movieECW A Matter of Respect 1996
1996
Bill Alfonso (Manager)
ECW Fan Cam: May 10, 1996
1996
Bill Alfonso (Manager)
movieECW Hostile City Showdown 1996
1996
Bill Alfonso
movieECW Massacre on Queens BLVD
1996
Bill Alfonso (Manager)
movieECW Big Ass Extreme Bash 1996
1996
Bill Alfonso
movieECW Just Another Night 1996
1996
Bill Alfonso
movieECW CyberSlam 1996
1996
Bill Alfonso
movieECW Big Apple Blizzard Blast
1996
Bill Alfonso
ECW: January 27, 1996
1996
Bill Alfonso (Appearance)
movieECW Extreme Warfare Vol. 2
1996
Bill Alfonso
movieECW House Party 1996
1996
Bill Alfonso (Manager)
movieECW Holiday Hell 1995
1995
Bill Alfonso (Manager)
movieECW November to Remember 1995
1995
Bill Alfonso
ECW Fan Cam: September 23, 1995
1995
Bill Alfonso (Referee)
movieECW Gangstas Paradise 1995
1995
Bill Alfonso (Troubleshooting Referee)
ECW Sunshine State Slaughter
1995
Bill Alfonso (Troubleshooting Referee)
movieECW Heat Wave 1995
1995
Bill Alfonso (Troubleshooting Referee)
movieECW Hardcore Heaven 1995
1995
Bill Alfonso (Troubleshooting Referee)
movieECW Mountain Top Madness
1995
Bill Alfonso
movieECW Barbed Wire, Hoodies and Chokeslams
1995
Bill Alfonso (State Appointed Referee)
movieECW Enter the Sandman 1995
1995
Bill Alfonso (Troubleshooting Referee)
movieBret "Hit Man" Hart
1994
Bill Alfonso
movieWWE Bloopers Bleeps and Bodyslams
1994
Bill Alfonso
movieWWE Bashed in the USA
1993
Bill Alfonso
tvRaw
1993
Bill Alfonso
tvWWF Wrestling Challenge
1986
Bill Alfonzo
tvMid-Atlantic Championship Wrestling
1981
Bill Alfonso (Referee)