William Sierra
Acting • AGE 68
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 i...
Acting
GCW: Joey Janela's Spring Break X
Bill Alfonso
2026
The Ref Didn’t See It!
Bill Alfonso
2025
The WRLD on GCW
Bill Alfonso
2022
Barbed Wire City: The Unauthorized Story of Extreme Championship Wrestling
Himself
2013
WWE: Undertaker 20-0 - The Streak
Bill Alfonso - Referee (archive footage)
2012
WWE: Blood Sport ECW - The Most Violent Matches
2006
ECW: Bloodsport The Most Violent Matches
Bill Alfonso
2006
Hardcore Homecoming
Bill Alfonso (Manager)
2005
MLW War Games
Bill Alfonso
2003
MLW Rise of The Renegades
2003
MLW Hybrid Hell
Bill Alfonso (Manager)
2003
WWA The Revolution
Bill Alfonso
2002
ECW Hardcore History
Bill Alfonso (Referee)
2001
ECW Path of Destruction
Bill Alfonso (Manager)
2000
ECW Anarchy Rulz 2000
Bill Alfonso (Manager)
2000
ECW: Extreme Evolution
Bill Alfonso (Manager)
2000
ECW Heat Wave 2000
Bill Alfonso (Manager)
2000
ECW Living Dangerously 2000
Bill Alfonso
2000
ECW Guilty as Charged 2000
Bill Alfonso (Manager)
2000
ECW November to Remember 1999
Bill Alfonso (Manager)
1999
ECW Anarchy Rulz 1999
Bill Alfonso (Manager)
1999
ECW Heat Wave 1999
Bill Alfonso
1999
ECW Hardcore Heaven 1999
Bill Alfonso (Manager)
1999
ECW CyberSlam 1999
Bill Alfonso (Manager)
1999
ECW Living Dangerously 1999
Bill Alfonso (Manager)
1999
ECW Crossing The Line 1999
Bill Alfonso
1999
ECW House Party 1999
Bill Alfonso
1999
ECW Guilty as Charged 1999
Bill Alfonso
1999
ECW November To Remember 1998
Bill Alfonso (Manager)
1998
ECW Heat Wave 1998
Bill Alfonso
1998
ECW A Matter of Respect 1998
Bill Alfonso (Manager)
1998
ECW It Ain't Seinfeld
Bill Alfonso (Manager)
1998
ECW Wrestlepalooza 1998
Bill Alfonso
1998
ECW Living Dangerously 1998
Bill Alfonso
1998
ECW CyberSlam 1998
Bill Alfonso (Manager)
1998
ECW House Party 1998
Bill Alfonso
1998
ECW November to Remember 1997
Bill Alfonso (Manager)
1997
ECW As Good As It Gets
Bill Alfonso
1997
ECW Hardcore Heaven 1997
Bill Alfonso (Manager)
1997
ECW Born To Be Wired
Bill Alfonso
1997
ECW Wrestlepalooza 1997
Bill Alfonso (Manager)
1997
ECW Barely Legal 1997
Bill Alfonso (Manager)
1997
ECW Holiday Hell 1996
Bill Alfonso
1996
ECW November to Remember 1996
Bill Alfonso
1996
ECW Ultimate Jeopardy 1996
Bill Alfonso
1996
ECW Natural Born Killaz
Bill Alfonso (Manager)
1996
ECW The Doctor Is In 1996
Bill Alfonso
1996
ECW Hardcore Heaven 1996
Bill Alfonso
1996
ECW A Matter of Respect 1996
Bill Alfonso (Manager)
1996
ECW Hostile City Showdown 1996
Bill Alfonso
1996
ECW Massacre on Queens BLVD
Bill Alfonso (Manager)
1996
ECW Big Ass Extreme Bash 1996
Bill Alfonso
1996
ECW Just Another Night 1996
Bill Alfonso
1996
ECW CyberSlam 1996
Bill Alfonso
1996
ECW Big Apple Blizzard Blast
Bill Alfonso
1996
ECW Extreme Warfare Vol. 2
Bill Alfonso
1996
ECW House Party 1996
Bill Alfonso (Manager)
1996
ECW Holiday Hell 1995
Bill Alfonso (Manager)
1995
ECW November to Remember 1995
Bill Alfonso
1995
ECW Gangstas Paradise 1995
Bill Alfonso (Troubleshooting Referee)
1995
ECW Heat Wave 1995
Bill Alfonso (Troubleshooting Referee)
1995
ECW Hardcore Heaven 1995
Bill Alfonso (Troubleshooting Referee)
1995
ECW Mountain Top Madness
Bill Alfonso
1995
ECW Barbed Wire, Hoodies and Chokeslams
Bill Alfonso (State Appointed Referee)
1995
ECW Enter the Sandman 1995
Bill Alfonso (Troubleshooting Referee)
1995
Bret "Hit Man" Hart
Bill Alfonso
1994
WWE Bloopers Bleeps and Bodyslams
Bill Alfonso
1994
WWE Bashed in the USA
Bill Alfonso
1993
Raw
Bill Alfonso
1993
WWF Wrestling Challenge
Bill Alfonzo
1986
Mid-Atlantic Championship Wrestling
Bill Alfonso (Referee)
1981