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.
104 movies · 3 shows
GCW: Joey Janela's Spring Break X
2026·10.0
The Ref Didn’t See It!
2025·9.0
Battleground Championship Wrestling Presents ECW Reunion Show: A Tribute To The Extreme 2
2024·0.0
The WRLD on GCW
2022·0.0
Battleground Championship Wrestling
2021·0.0
WrestleCade Supershow 2019
2019·0.0
Barbed Wire City: The Unauthorized Story of Extreme Championship Wrestling
2013·8.0
WWE: Undertaker 20-0 - The Streak
2012·8.8
WWE: Blood Sport ECW - The Most Violent Matches
2006·8.0
ECW: Bloodsport The Most Violent Matches
2006·0.0
Hardcore Homecoming
2005·10.0
MLW War Games
2003·0.0
MLW Rise of The Renegades
2003·0.0
MLW Hybrid Hell
2003·0.0
WWA The Revolution
2002·10.0
ECW: The Best of Cactus Jack
2001·4.8
MECW Inaugural Show
2001·0.0
ECW Hardcore History
2001·8.3
ECW Path of Destruction
2000·0.0
ECW Anarchy Rulz 2000
2000·0.0
ECW Fan Cam: September 9, 2000
2000·0.0
ECW Fan Cam: August 25, 2000
2000·0.0
ECW: Extreme Evolution
2000·0.0
ECW Heat Wave 2000
2000·5.2
ECW Fan Cam: June 3, 2000
2000·0.0
ECW Living Dangerously 2000
2000·0.0
ECW Fan Cam: January 27, 2000
2000·0.0
ECW Guilty as Charged 2000
2000·8.0
ECW Fan Cam: December 17, 1999
1999·0.0
ECW November to Remember 1999
1999·10.0
ECW Fan Cam: October 23, 1999
1999·0.0
ECW Fan Cam: October 15, 1999
1999·0.0
ECW Anarchy Rulz 1999
1999·8.0
ECW Heat Wave 1999
1999·10.0
ECW Fan Cam: May 29, 1999
1999·0.0
ECW Hardcore Heaven 1999
1999·1.0
ECW CyberSlam 1999
1999·7.0
ECW Living Dangerously 1999
1999·7.0
ECW Crossing The Line 1999
1999·0.0
ECW Fan Cam: February 6, 1999
1999·0.0
ECW Fan Cam: January 30, 1999
1999·0.0
ECW House Party 1999
1999·0.0
ECW Guilty as Charged 1999
1999·5.0
ECW November To Remember 1998
1998·7.0
ECW Fan Cam: September 17, 1998
1998·0.0
ECW Heat Wave 1998
1998·9.5
ECW A Matter of Respect 1998
1998·0.0
ECW It Ain't Seinfeld
1998·9.0
ECW Wrestlepalooza 1998
1998·7.0
The Best of Shane Douglas
1998·0.0
ECW Fan Cam: March 7, 1998
1998·0.0
The Best of The Eliminators
1998·0.0
ECW Living Dangerously 1998
1998·9.0
ECW CyberSlam 1998
1998·10.0
ECW House Party 1998
1998·7.0
ECW November to Remember 1997
1997·4.5
ECW Fan Cam: October 31, 1997
1997·0.0
ECW As Good As It Gets
1997·8.0
ECW Hardcore Heaven 1997
1997·8.0
ECW Born To Be Wired
1997·0.0
ECW Heat Wave 1997
1997·0.0
ECW Wrestlepalooza 1997
1997·0.0
ECW Fan Cam: May 16, 1997
1997·0.0
ECW Fan Cam: May 3, 1997
1997·0.0
ECW Fan Cam: May 2, 1997 (Barely Legal II)
1997·0.0
ECW Barely Legal 1997
1997·8.0
ECW Fan Cam: April 4, 1997
1997·0.0
ECW Fan Cam: March 22, 1997
1997·0.0
ECW Fan Cam: February 14, 1997
1997·0.0
ECW Holiday Hell 1996
1996·1.0
ECW Fan Cam: November 23, 1996
1996·0.0
ECW November to Remember 1996
1996·2.3
ECW High Incident
1996·0.0
ECW Fan Cam: October 18, 1996
1996·0.0
ECW Ultimate Jeopardy 1996
1996·0.0
ECW When Worlds Collide 1996
1996·0.0
ECW Natural Born Killaz
1996·0.0
ECW The Doctor Is In 1996
1996·10.0
ECW Fan Cam: July 28, 1996
1996·0.0
ECW Hardcore Heaven 1996
1996·3.5
ECW A Matter of Respect 1996
1996·0.0
ECW Fan Cam: May 10, 1996
1996·0.0
ECW Hostile City Showdown 1996
1996·1.0
ECW Massacre on Queens BLVD
1996·0.0
ECW Big Ass Extreme Bash 1996
1996·6.8
ECW Just Another Night 1996
1996·0.0
ECW CyberSlam 1996
1996·0.0
ECW Big Apple Blizzard Blast
1996·6.0
ECW: January 27, 1996
1996·0.0
ECW Extreme Warfare Vol. 2
1996·0.0
ECW House Party 1996
1996·9.0
ECW Holiday Hell 1995
1995·0.0
ECW November to Remember 1995
1995·10.0
ECW Fan Cam: September 23, 1995
1995·0.0
ECW Gangstas Paradise 1995
1995·0.0
ECW Sunshine State Slaughter
1995·0.0
ECW Heat Wave 1995
1995·0.0
ECW Hardcore Heaven 1995
1995·6.0
ECW Mountain Top Madness
1995·5.0
ECW Barbed Wire, Hoodies and Chokeslams
1995·0.0
ECW Enter the Sandman 1995
1995·6.0
Bret "Hit Man" Hart
1994·0.0
WWE Bloopers Bleeps and Bodyslams
1994·10.0
WWE Bashed in the USA
1993·0.0