Portrait of William Sierra

William Sierra

Acting

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 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.

Born: August 11, 1957

Place of Birth: Tampa, Florida, USA

Filmography

2025
2022
The WRLD on GCW

as Bill Alfonso

2012
WWE: Undertaker 20-0 - The Streak

as Bill Alfonso - Referee (archive footage)

2005
Hardcore Homecoming

as Bill Alfonso (Manager)

2003
MLW War Games

as Bill Alfonso

2003
MLW Hybrid Hell

as Bill Alfonso (Manager)

2002
WWA The Revolution

as Bill Alfonso

2001
ECW Hardcore History

as Bill Alfonso (Referee)

2000
ECW Path of Destruction

as Bill Alfonso (Manager)

2000
ECW Anarchy Rulz 2000

as Bill Alfonso (Manager)

2000
ECW: Extreme Evolution

as Bill Alfonso (Manager)

2000
ECW Heat Wave 2000

as Bill Alfonso (Manager)

2000
ECW Living Dangerously 2000

as Bill Alfonso (Appearance)

2000
ECW Guilty as Charged 2000

as Bill Alfonso (Manager)

1999
ECW November to Remember 1999

as Bill Alfonso (Manager)

1999
ECW Anarchy Rulz 1999

as Bill Alfonso (Manager)

1999
ECW Heat Wave 1999

as Bill Alfonso

1999
ECW Hardcore Heaven 1999

as Bill Alfonso (Manager)

1999
ECW CyberSlam 1999

as Bill Alfonso (Manager)

1999
ECW Living Dangerously 1999

as Bill Alfonso (Manager)

1999
1999
ECW House Party 1999

as Bill Alfonso

1999
1998
ECW November To Remember 1998

as Bill Alfonso (Manager)

1998
ECW Heat Wave 1998

as Bill Alfonso

1998
ECW A Matter of Respect 1998

as Bill Alfonso (Manager)

1998
ECW It Ain't Seinfeld

as Bill Alfonso (Manager)

1998
1998
1998
ECW CyberSlam 1998

as Bill Alfonso (Manager)

1998
ECW House Party 1998

as Bill Alfonso

1997
ECW November to Remember 1997

as Bill Alfonso (Manager)

1997
ECW As Good As It Gets

as Bill Alfonso

1997
ECW Hardcore Heaven 1997

as Bill Alfonso (Manager)

1997
ECW Born To Be Wired

as Bill Alfonso

1997
ECW Wrestlepalooza 1997

as Bill Alfonso (Manager)

1997
ECW Barely Legal 1997

as Bill Alfonso (Manager)

1996
ECW Holiday Hell 1996

as Bill Alfonso

1996
1996
ECW Natural Born Killaz

as Bill Alfonso (Manager)

1996
ECW The Doctor is In

as Bill Alfonso

1996
1996
ECW A Matter of Respect

as Bill Alfonso (Manager)

1996
ECW Massacre on Queens Boulevard

as Bill Alfonso (Manager)

1996
1996
ECW Just Another Night

as Bill Alfonso

1996
ECW CyberSlam 1996

as Bill Alfonso

1996
1996
1996
ECW House Party 1996

as Bill Alfonso (Manager)

1995
1995
ECW Gangsta's Paradise

as Bill Alfonso (Troubleshooting Referee)

1995
ECW Heat Wave 1995

as Bill Alfonso (Troubleshooting Referee)

1995
ECW Hardcore Heaven 1995

as Bill Alfonso (Troubleshooting Referee)

1995
1995
ECW Barbed Wire, Hoodies and Chokeslams

as Bill Alfonso (State Appointed Referee)

1995
ECW Enter The Sandman

as Bill Alfonso (Troubleshooting Referee)

1994
Bret "Hit Man" Hart

as Bill Alfonso

1993
WWE Bashed in the USA

as Bill Alfonso

1993
Raw

as Bill Alfonso

1986
1981
Mid-Atlantic Championship Wrestling

as Bill Alfonso (Referee)