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 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.…
Filmography
GCW: Joey Janela's Spring Break X
2026 · 10.0
ECW November to Remember 1999
1999 · 10.0
ECW November to Remember 1995
1995 · 10.0
ECW Heat Wave 1999
1999 · 10.0
ECW The Doctor Is In 1996
1996 · 10.0
WWE Bloopers Bleeps and Bodyslams
1994 · 10.0
ECW CyberSlam 1998
1998 · 10.0
WWA The Revolution
2002 · 10.0
Hardcore Homecoming
2005 · 10.0
ECW Heat Wave 1998
1998 · 9.5
ECW It Ain't Seinfeld
1998 · 9.0
ECW House Party 1996
1996 · 9.0
ECW Living Dangerously 1998
1998 · 9.0
The Ref Didn’t See It!
2025 · 9.0
WWE: Undertaker 20-0 - The Streak
2012 · 8.8
ECW Hardcore History
2001 · 8.3
ECW Anarchy Rulz 1999
1999 · 8.0
WWE: Blood Sport ECW - The Most Violent Matches
2006 · 8.0
ECW Barely Legal 1997
1997 · 8.0
ECW Guilty as Charged 2000
2000 · 8.0
ECW Hardcore Heaven 1997
1997 · 8.0
ECW As Good As It Gets
1997 · 8.0
ECW November To Remember 1998
1998 · 7.0
ECW Living Dangerously 1999
1999 · 7.0
ECW House Party 1998
1998 · 7.0
ECW Wrestlepalooza 1998
1998 · 7.0
ECW CyberSlam 1999
1999 · 7.0
WWF Wrestling Challenge
1986 · 6.8
ECW Big Ass Extreme Bash 1996
1996 · 6.8
Raw
1993 · 6.8
ECW Hardcore Heaven 1995
1995 · 6.0
ECW Enter the Sandman 1995
1995 · 6.0
ECW Big Apple Blizzard Blast
1996 · 6.0
ECW Heat Wave 2000
2000 · 5.2
ECW Guilty as Charged 1999
1999 · 5.0
ECW Mountain Top Madness
1995 · 5.0
ECW: The Best of Cactus Jack
2001 · 4.8
ECW November to Remember 1997
1997 · 4.5
ECW Hardcore Heaven 1996
1996 · 3.5
ECW November to Remember 1996
1996 · 2.3
ECW Hardcore Heaven 1999
1999 · 1.0
ECW Hostile City Showdown 1996
1996 · 1.0
ECW Holiday Hell 1996
1996 · 1.0
Mid-Atlantic Championship Wrestling
1981 · 0.0
ECW Holiday Hell 1995
1995 · 0.0
Battleground Championship Wrestling Presents ECW Reunion Show: A Tribute To The Extreme 2
2024 · 0.0
WWE Bashed in the USA
1993 · 0.0
ECW Gangstas Paradise 1995
1995 · 0.0
ECW A Matter of Respect 1996
1996 · 0.0
ECW Crossing The Line 1999
1999 · 0.0
ECW A Matter of Respect 1998
1998 · 0.0
Bret "Hit Man" Hart
1994 · 0.0
ECW Natural Born Killaz
1996 · 0.0
MLW Rise of The Renegades
2003 · 0.0
ECW Extreme Warfare Vol. 2
1996 · 0.0
ECW Ultimate Jeopardy 1996
1996 · 0.0
ECW: Bloodsport The Most Violent Matches
2006 · 0.0
ECW Anarchy Rulz 2000
2000 · 0.0
ECW Massacre on Queens BLVD
1996 · 0.0
ECW Fan Cam: November 23, 1996
1996 · 0.0
ECW Path of Destruction
2000 · 0.0
ECW Heat Wave 1995
1995 · 0.0
ECW Just Another Night 1996
1996 · 0.0
ECW House Party 1999
1999 · 0.0
ECW Born To Be Wired
1997 · 0.0
ECW Living Dangerously 2000
2000 · 0.0
ECW Fan Cam: May 16, 1997
1997 · 0.0
MLW War Games
2003 · 0.0
The WRLD on GCW
2022 · 0.0
ECW: Extreme Evolution
2000 · 0.0
ECW Wrestlepalooza 1997
1997 · 0.0
ECW Heat Wave 1997
1997 · 0.0
ECW Fan Cam: March 22, 1997
1997 · 0.0
ECW Fan Cam: September 9, 2000
2000 · 0.0
ECW Fan Cam: March 7, 1998
1998 · 0.0
ECW Fan Cam: June 3, 2000
2000 · 0.0
The Best of Shane Douglas
1998 · 0.0
ECW When Worlds Collide 1996
1996 · 0.0
ECW: January 27, 1996
1996 · 0.0
ECW Barbed Wire, Hoodies and Chokeslams
1995 · 0.0
ECW Fan Cam: September 23, 1995
1995 · 0.0
ECW CyberSlam 1996
1996 · 0.0
ECW Fan Cam: May 3, 1997
1997 · 0.0
The Best of The Eliminators
1998 · 0.0
ECW Fan Cam: October 15, 1999
1999 · 0.0
ECW Fan Cam: February 6, 1999
1999 · 0.0
ECW Fan Cam: October 23, 1999
1999 · 0.0
ECW Fan Cam: July 28, 1996
1996 · 0.0
ECW Fan Cam: April 4, 1997
1997 · 0.0
ECW Fan Cam: January 30, 1999
1999 · 0.0
ECW Fan Cam: October 18, 1996
1996 · 0.0
WrestleCade Supershow 2019
2019 · 0.0
ECW Fan Cam: May 2, 1997 (Barely Legal II)
1997 · 0.0
ECW Fan Cam: May 10, 1996
1996 · 0.0
ECW Fan Cam: December 17, 1999
1999 · 0.0
ECW Sunshine State Slaughter
1995 · 0.0
ECW Fan Cam: February 14, 1997
1997 · 0.0
ECW Fan Cam: October 31, 1997
1997 · 0.0
ECW Fan Cam: May 29, 1999
1999 · 0.0
ECW Fan Cam: September 17, 1998
1998 · 0.0
MECW Inaugural Show
2001 · 0.0
Battleground Championship Wrestling
2021 · 0.0
ECW Fan Cam: August 25, 2000
2000 · 0.0
MLW Hybrid Hell
2003 · 0.0
ECW High Incident
1996 · 0.0
ECW Fan Cam: January 27, 2000
2000 · 0.0