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William Sierra

Acting
August 11, 1957 (68 years old)
Tampa, Florida, USA
Popularity: 0
Website

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...

Also Known As

Bill Alfonso

Known For

Raw series poster (1993)
6.8

Raw

Bill Alfonso

WWF Wrestling Challenge series poster (1986)
6.8

WWF Wrestling Challenge

Bill Alfonzo

Mid-Atlantic Championship Wrestling series poster (1981)

Mid-Atlantic Championship Wrestling

Bill Alfonso (Referee)

WWE Bashed in the USA movie poster (1993)

WWE Bashed in the USA

Bill Alfonso

ECW Heat Wave 2000 movie poster (2000)
5.2

ECW Heat Wave 2000

Bill Alfonso (Manager)

ECW Barely Legal 1997 movie poster (1997)
8.0

ECW Barely Legal 1997

Bill Alfonso (Manager)

ECW Living Dangerously 2000 movie poster (2000)

ECW Living Dangerously 2000

Bill Alfonso

ECW Heat Wave 1998 movie poster (1998)
9.5

ECW Heat Wave 1998

Bill Alfonso

ECW Guilty as Charged 1999 movie poster (1999)
5.0

ECW Guilty as Charged 1999

Bill Alfonso

ECW: Bloodsport The Most Violent Matches movie poster (2006)

ECW: Bloodsport The Most Violent Matches

Bill Alfonso

ECW Hardcore Heaven 1996 movie poster (1996)
6.0

ECW Hardcore Heaven 1996

Bill Alfonso

ECW Hardcore History movie poster (2001)
8.3

ECW Hardcore History

Bill Alfonso (Referee)

Filmography

2020s

The Ref Didn’t See It! movie poster (2025)
9.0

The Ref Didn’t See It!

Bill Alfonso

The WRLD on GCW movie poster (2022)

The WRLD on GCW

Bill Alfonso

2010s

Barbed Wire City: The Unauthorized Story of Extreme Championship Wrestling movie poster (2013)
8.0

Barbed Wire City: The Unauthorized Story of Extreme Championship Wrestling

Himself

WWE: Undertaker 20-0 - The Streak movie poster (2012)
8.8

WWE: Undertaker 20-0 - The Streak

Bill Alfonso - Referee (archive footage)

2000s

ECW: Bloodsport The Most Violent Matches movie poster (2006)

ECW: Bloodsport The Most Violent Matches

Bill Alfonso

WWE: Blood Sport ECW - The Most Violent Matches movie poster (2006)
8.0

WWE: Blood Sport ECW - The Most Violent Matches

Hardcore Homecoming movie poster (2005)
10.0

Hardcore Homecoming

Bill Alfonso (Manager)

MLW War Games movie poster (2003)

MLW War Games

Bill Alfonso

MLW Hybrid Hell movie poster (2003)

MLW Hybrid Hell

Bill Alfonso (Manager)

MLW Rise of The Renegades movie poster (2003)

MLW Rise of The Renegades

WWA The Revolution movie poster (2002)
10.0

WWA The Revolution

Bill Alfonso

ECW Hardcore History movie poster (2001)
8.3

ECW Hardcore History

Bill Alfonso (Referee)

ECW Living Dangerously 2000 movie poster (2000)

ECW Living Dangerously 2000

Bill Alfonso

ECW Heat Wave 2000 movie poster (2000)
5.2

ECW Heat Wave 2000

Bill Alfonso (Manager)

ECW Anarchy Rulz 2000 movie poster (2000)

ECW Anarchy Rulz 2000

Bill Alfonso (Manager)

ECW Path of Destruction movie poster (2000)

ECW Path of Destruction

Bill Alfonso (Manager)

ECW: Extreme Evolution movie poster (2000)

ECW: Extreme Evolution

Bill Alfonso (Manager)

ECW Guilty as Charged 2000 movie poster (2000)
8.0

ECW Guilty as Charged 2000

Bill Alfonso (Manager)

1990s

ECW Guilty as Charged 1999 movie poster (1999)
5.0

ECW Guilty as Charged 1999

Bill Alfonso

ECW Crossing The Line 1999 movie poster (1999)

ECW Crossing The Line 1999

Bill Alfonso

ECW November to Remember 1999 movie poster (1999)
10.0

ECW November to Remember 1999

Bill Alfonso (Manager)

ECW Heat Wave 1999 movie poster (1999)
10.0

ECW Heat Wave 1999

Bill Alfonso

ECW House Party 1999 movie poster (1999)

ECW House Party 1999

Bill Alfonso

ECW Anarchy Rulz 1999 movie poster (1999)
8.0

ECW Anarchy Rulz 1999

Bill Alfonso (Manager)

ECW Hardcore Heaven 1999 movie poster (1999)
1.0

ECW Hardcore Heaven 1999

Bill Alfonso (Manager)

ECW Living Dangerously 1999 movie poster (1999)
7.0

ECW Living Dangerously 1999

Bill Alfonso (Manager)

ECW CyberSlam 1999 movie poster (1999)
7.0

ECW CyberSlam 1999

Bill Alfonso (Manager)

ECW Heat Wave 1998 movie poster (1998)
9.5

ECW Heat Wave 1998

Bill Alfonso

ECW Living Dangerously 1998 movie poster (1998)
9.0

ECW Living Dangerously 1998

Bill Alfonso

ECW CyberSlam 1998 movie poster (1998)
10.0

ECW CyberSlam 1998

Bill Alfonso (Manager)

ECW Wrestlepalooza 1998 movie poster (1998)
7.0

ECW Wrestlepalooza 1998

Bill Alfonso

ECW House Party 1998 movie poster (1998)
7.0

ECW House Party 1998

Bill Alfonso

ECW It Ain't Seinfeld movie poster (1998)
9.0

ECW It Ain't Seinfeld

Bill Alfonso (Manager)

ECW November To Remember 1998 movie poster (1998)
7.0

ECW November To Remember 1998

Bill Alfonso (Manager)

ECW A Matter of Respect 1998 movie poster (1998)

ECW A Matter of Respect 1998

Bill Alfonso (Manager)

ECW Barely Legal 1997 movie poster (1997)
8.0

ECW Barely Legal 1997

Bill Alfonso (Manager)

ECW Wrestlepalooza 1997 movie poster (1997)

ECW Wrestlepalooza 1997

Bill Alfonso (Manager)

ECW Hardcore Heaven 1997 movie poster (1997)
8.0

ECW Hardcore Heaven 1997

Bill Alfonso (Manager)

ECW As Good As It Gets movie poster (1997)
8.0

ECW As Good As It Gets

Bill Alfonso

ECW Born To Be Wired movie poster (1997)

ECW Born To Be Wired

Bill Alfonso

ECW November to Remember 1997 movie poster (1997)
4.5

ECW November to Remember 1997

Bill Alfonso (Manager)

ECW Massacre on Queens BLVD movie poster (1996)

ECW Massacre on Queens BLVD

Bill Alfonso (Manager)

ECW Hardcore Heaven 1996 movie poster (1996)
6.0

ECW Hardcore Heaven 1996

Bill Alfonso

ECW A Matter of Respect 1996 movie poster (1996)

ECW A Matter of Respect 1996

Bill Alfonso (Manager)

ECW The Doctor Is In 1996 movie poster (1996)
10.0

ECW The Doctor Is In 1996

Bill Alfonso

ECW House Party 1996 movie poster (1996)
9.0

ECW House Party 1996

Bill Alfonso (Manager)

ECW Big Ass Extreme Bash 1996 movie poster (1996)
6.8

ECW Big Ass Extreme Bash 1996

Bill Alfonso

ECW Ultimate Jeopardy 1996 movie poster (1996)

ECW Ultimate Jeopardy 1996

Bill Alfonso

ECW Hostile City Showdown 1996 movie poster (1996)
1.0

ECW Hostile City Showdown 1996

Bill Alfonso

ECW CyberSlam 1996 movie poster (1996)

ECW CyberSlam 1996

Bill Alfonso

ECW Big Apple Blizzard Blast movie poster (1996)
6.0

ECW Big Apple Blizzard Blast

Bill Alfonso

ECW Natural Born Killaz movie poster (1996)

ECW Natural Born Killaz

Bill Alfonso (Manager)

ECW Holiday Hell 1996 movie poster (1996)
1.0

ECW Holiday Hell 1996

Bill Alfonso

ECW November to Remember 1996 movie poster (1996)
2.3

ECW November to Remember 1996

Bill Alfonso

ECW Just Another Night 1996 movie poster (1996)

ECW Just Another Night 1996

Bill Alfonso

ECW Extreme Warfare Vol. 2 movie poster (1996)

ECW Extreme Warfare Vol. 2

Bill Alfonso

ECW Holiday Hell 1995 movie poster (1995)

ECW Holiday Hell 1995

Bill Alfonso (Manager)

ECW Barbed Wire, Hoodies and Chokeslams movie poster (1995)

ECW Barbed Wire, Hoodies and Chokeslams

Bill Alfonso (State Appointed Referee)

ECW November to Remember 1995 movie poster (1995)
10.0

ECW November to Remember 1995

Bill Alfonso

ECW Enter the Sandman 1995 movie poster (1995)
6.0

ECW Enter the Sandman 1995

Bill Alfonso (Troubleshooting Referee)

ECW Gangstas Paradise 1995 movie poster (1995)

ECW Gangstas Paradise 1995

Bill Alfonso (Troubleshooting Referee)

ECW Hardcore Heaven 1995 movie poster (1995)
6.0

ECW Hardcore Heaven 1995

Bill Alfonso (Troubleshooting Referee)

ECW Mountain Top Madness movie poster (1995)
5.0

ECW Mountain Top Madness

Bill Alfonso

ECW Heat Wave 1995 movie poster (1995)

ECW Heat Wave 1995

Bill Alfonso (Troubleshooting Referee)

WWE Bloopers Bleeps and Bodyslams movie poster (1994)
10.0

WWE Bloopers Bleeps and Bodyslams

Bill Alfonso