Portrait of William Sierra

William Sierra

Bio: 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
Born: Sun, Aug 11 1957
Birthplace: Tampa, Florida, USA
William Sierra is 67 years old
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Acting Roles
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Movies (Acting Roles)

Sorted by Release Date
Poster of The WRLD on GCW
The WRLD on GCW
William Sierra was
64 in The WRLD on GCW
as 'Bill Alfonso'.
Sun, Jan 23 2022
Poster of WrestleCade Supershow 2019
WrestleCade Supershow 2019
William Sierra was
62 in WrestleCade Supershow 2019
as 'Bill Alfonso'.
Sat, Nov 30 2019
Poster of Barbed Wire City: The Unauthorized Story of Extreme Championship Wrestling
Barbed Wire City: The Unauthorized Story of Extreme Championship Wrestling
William Sierra was
55 in Barbed Wire City: The Unauthorized Story of Extreme Championship Wrestling
as 'Himself'.
Sat, Apr 20 2013
Poster of WWE: Undertaker 20-0 - The Streak
WWE: Undertaker 20-0 - The Streak
William Sierra was
54 in WWE: Undertaker 20-0 - The Streak
as 'Bill Alfonso - Referee (archive footage)'.
Mon, Jul 23 2012
Poster of WWE: Blood Sport ECW - The Most Violent Matches
WWE: Blood Sport ECW - The Most Violent Matches
William Sierra was
48 in WWE: Blood Sport ECW - The Most Violent Matches
Tue, Feb 07 2006
Poster of ECW: Bloodsport The Most Violent Matches
ECW: Bloodsport The Most Violent Matches
William Sierra was
48 in ECW: Bloodsport The Most Violent Matches
as 'Bill Alfonso'.
Tue, Feb 07 2006
Poster of Hardcore Homecoming
Hardcore Homecoming
William Sierra was
47 in Hardcore Homecoming
as 'Bill Alfonso (Manager)'.
Fri, Jun 10 2005
Poster of MLW War Games
MLW War Games
William Sierra was
46 in MLW War Games
as 'Bill Alfonso'.
Fri, Sep 19 2003
Poster of MLW Rise of The Renegades
MLW Rise of The Renegades
William Sierra was
45 in MLW Rise of The Renegades
Sat, Jul 26 2003
Poster of ECW: The Best of Cactus Jack
ECW: The Best of Cactus Jack
William Sierra was
44 in ECW: The Best of Cactus Jack
as 'Bill Alfonso'.
Tue, Oct 23 2001
Poster of MECW Inaugural Show
MECW Inaugural Show
William Sierra was
44 in MECW Inaugural Show
Sat, Aug 11 2001
Poster of ECW Path of Destruction
ECW Path of Destruction
William Sierra was
43 in ECW Path of Destruction
as 'Bill Alfonso (Manager)'.
Tue, Nov 14 2000
Poster of ECW Anarchy Rulz 2000
ECW Anarchy Rulz 2000
William Sierra was
43 in ECW Anarchy Rulz 2000
as 'Bill Alfonso (Manager)'.
Sun, Oct 01 2000
Poster of ECW Fan Cam: September 9, 2000
ECW Fan Cam: September 9, 2000
William Sierra was
43 in ECW Fan Cam: September 9, 2000
as 'Bill Alfonso (Manager)'.
Sat, Sep 09 2000
Poster of ECW Fan Cam: August 25, 2000
ECW Fan Cam: August 25, 2000
William Sierra was
43 in ECW Fan Cam: August 25, 2000
as 'Bill Alfonso (Manager)'.
Fri, Aug 25 2000
Poster of ECW Heat Wave 2000
ECW Heat Wave 2000
William Sierra was
42 in ECW Heat Wave 2000
as 'Bill Alfonso (Manager)'.
Sun, Jul 16 2000
Poster of ECW Fan Cam: June 3, 2000
ECW Fan Cam: June 3, 2000
William Sierra was
42 in ECW Fan Cam: June 3, 2000
as 'Bill Alfonso (Manager)'.
Sat, Jun 03 2000
Poster of ECW Living Dangerously 2000
ECW Living Dangerously 2000
William Sierra was
42 in ECW Living Dangerously 2000
as 'Bill Alfonso (Appearance)'.
Sun, Mar 12 2000
Poster of ECW Fan Cam: January 27, 2000
ECW Fan Cam: January 27, 2000
William Sierra was
42 in ECW Fan Cam: January 27, 2000
as 'Bill Alfonso'.
Thu, Jan 27 2000
Poster of ECW Guilty as Charged 2000
ECW Guilty as Charged 2000
William Sierra was
42 in ECW Guilty as Charged 2000
as 'Bill Alfonso (Manager)'.
Sun, Jan 09 2000
Poster of ECW Fan Cam: December 17, 1999
ECW Fan Cam: December 17, 1999
William Sierra was
42 in ECW Fan Cam: December 17, 1999
as 'Bill Alfonso (Manager)'.
Fri, Dec 17 1999
Poster of ECW November to Remember 1999
ECW November to Remember 1999
William Sierra was
42 in ECW November to Remember 1999
as 'Bill Alfonso (Manager)'.
Sun, Nov 07 1999
Poster of ECW Fan Cam: October 23, 1999
ECW Fan Cam: October 23, 1999
William Sierra was
42 in ECW Fan Cam: October 23, 1999
as 'Bill Alfonso (Manager)'.
Sat, Oct 23 1999
Poster of ECW Fan Cam: October 15, 1999
ECW Fan Cam: October 15, 1999
William Sierra was
42 in ECW Fan Cam: October 15, 1999
as 'Bill Alfonso (Manager)'.
Fri, Oct 15 1999
Poster of ECW Anarchy Rulz 1999
ECW Anarchy Rulz 1999
William Sierra was
42 in ECW Anarchy Rulz 1999
as 'Bill Alfonso (Manager)'.
Sun, Sep 19 1999
Poster of ECW Heat Wave 1999
ECW Heat Wave 1999
William Sierra was
41 in ECW Heat Wave 1999
as 'Bill Alfonso'.
Sun, Jul 18 1999
Poster of ECW Fan Cam: May 29, 1999
ECW Fan Cam: May 29, 1999
William Sierra was
41 in ECW Fan Cam: May 29, 1999
as 'Bill Alfonso (Manager)'.
Sat, May 29 1999
Poster of ECW Hardcore Heaven 1999
ECW Hardcore Heaven 1999
William Sierra was
41 in ECW Hardcore Heaven 1999
as 'Bill Alfonso (Manager)'.
Sun, May 16 1999
Poster of ECW CyberSlam 1999
ECW CyberSlam 1999
William Sierra was
41 in ECW CyberSlam 1999
as 'Bill Alfonso (Manager)'.
Fri, Apr 02 1999
Poster of ECW Living Dangerously 1999
ECW Living Dangerously 1999
William Sierra was
41 in ECW Living Dangerously 1999
as 'Bill Alfonso (Manager)'.
Sun, Mar 21 1999
Poster of ECW Crossing The Line 1999
ECW Crossing The Line 1999
William Sierra was
41 in ECW Crossing The Line 1999
as 'Bill Alfonso'.
Fri, Feb 12 1999
Poster of ECW Fan Cam: February 6, 1999
ECW Fan Cam: February 6, 1999
William Sierra was
41 in ECW Fan Cam: February 6, 1999
as 'Bill Alfonso (Manager)'.
Sat, Feb 06 1999
Poster of ECW Fan Cam: January 30, 1999
ECW Fan Cam: January 30, 1999
William Sierra was
41 in ECW Fan Cam: January 30, 1999
as 'Bill Alfonso (Manager)'.
Sat, Jan 30 1999
Poster of ECW House Party 1999
ECW House Party 1999
William Sierra was
41 in ECW House Party 1999
as 'Bill Alfonso'.
Sat, Jan 16 1999
Poster of ECW Guilty as Charged 1999
ECW Guilty as Charged 1999
William Sierra was
41 in ECW Guilty as Charged 1999
as 'Bill Alfonso'.
Sun, Jan 10 1999
Poster of ECW November To Remember 1998
ECW November To Remember 1998
William Sierra was
41 in ECW November To Remember 1998
as 'Bill Alfonso (Manager)'.
Sun, Nov 01 1998
Poster of ECW Fan Cam: September 17, 1998
ECW Fan Cam: September 17, 1998
William Sierra was
41 in ECW Fan Cam: September 17, 1998
as 'Bill Alfonso (Manager)'.
Thu, Sep 17 1998
Poster of ECW Heat Wave 1998
ECW Heat Wave 1998
William Sierra was
40 in ECW Heat Wave 1998
as 'Bill Alfonso'.
Sun, Aug 02 1998
Poster of ECW A Matter of Respect 1998
ECW A Matter of Respect 1998
William Sierra was
40 in ECW A Matter of Respect 1998
as 'Bill Alfonso (Manager)'.
Sat, May 16 1998
Poster of ECW It Ain't Seinfeld
ECW It Ain't Seinfeld
William Sierra was
40 in ECW It Ain't Seinfeld
as 'Bill Alfonso (Manager)'.
Thu, May 14 1998
Poster of ECW Wrestlepalooza 1998
ECW Wrestlepalooza 1998
William Sierra was
40 in ECW Wrestlepalooza 1998
as 'Bill Alfonso'.
Sun, May 03 1998
Poster of The Best of Shane Douglas
The Best of Shane Douglas
William Sierra was
40 in The Best of Shane Douglas
as 'Bill Alfonso (Manager)'.
Fri, May 01 1998
Poster of ECW Fan Cam: March 7, 1998
ECW Fan Cam: March 7, 1998
William Sierra was
40 in ECW Fan Cam: March 7, 1998
as 'Bill Alfonso (Manager)'.
Sat, Mar 07 1998
Poster of ECW Living Dangerously 1998
ECW Living Dangerously 1998
William Sierra was
40 in ECW Living Dangerously 1998
as 'Bill Alfonso'.
Sun, Mar 01 1998
Poster of The Best of The Eliminators
The Best of The Eliminators
William Sierra was
40 in The Best of The Eliminators
as 'Bill Alfonso (Manager)'.
Sun, Mar 01 1998
Poster of ECW CyberSlam 1998
ECW CyberSlam 1998
William Sierra was
40 in ECW CyberSlam 1998
as 'Bill Alfonso (Manager)'.
Sat, Feb 21 1998
Poster of ECW House Party 1998
ECW House Party 1998
William Sierra was
40 in ECW House Party 1998
as 'Bill Alfonso'.
Sat, Jan 10 1998
Poster of ECW November To Remember 1997
ECW November To Remember 1997
William Sierra was
40 in ECW November To Remember 1997
as 'Bill Alfonso'.
Sun, Nov 30 1997
Poster of ECW Fan Cam: October 31, 1997
ECW Fan Cam: October 31, 1997
William Sierra was
40 in ECW Fan Cam: October 31, 1997
as 'Bill Alfonso (Manager)'.
Fri, Oct 31 1997
Poster of ECW As Good As It Gets
ECW As Good As It Gets
William Sierra was
40 in ECW As Good As It Gets
as 'Bill Alfonso'.
Sat, Sep 20 1997
Poster of ECW Hardcore Heaven 1997
ECW Hardcore Heaven 1997
William Sierra was
40 in ECW Hardcore Heaven 1997
as 'Bill Alfonso (Manager)'.
Sun, Aug 17 1997
Poster of ECW Born To Be Wired
ECW Born To Be Wired
William Sierra was
39 in ECW Born To Be Wired
as 'Bill Alfonso'.
Fri, Aug 08 1997
Poster of ECW Wrestlepalooza 1997
ECW Wrestlepalooza 1997
William Sierra was
39 in ECW Wrestlepalooza 1997
as 'Bill Alfonso (Manager)'.
Sat, Jun 07 1997
Poster of ECW Barely Legal 1997
ECW Barely Legal 1997
William Sierra was
39 in ECW Barely Legal 1997
as 'Bill Alfonso (Manager)'.
Sun, Apr 13 1997
Poster of ECW Fan Cam: March 22, 1997
ECW Fan Cam: March 22, 1997
William Sierra was
39 in ECW Fan Cam: March 22, 1997
as 'Bill Alfonso (Manager)'.
Sat, Mar 22 1997
Poster of ECW Fan Cam: February 14, 1997
ECW Fan Cam: February 14, 1997
William Sierra was
39 in ECW Fan Cam: February 14, 1997
as 'Bill Alfonso (Manager)'.
Fri, Feb 14 1997
Poster of ECW Holiday Hell 1996
ECW Holiday Hell 1996
William Sierra was
39 in ECW Holiday Hell 1996
as 'Bill Alfonso'.
Sat, Dec 07 1996
Poster of ECW Fan Cam: November 23, 1996
ECW Fan Cam: November 23, 1996
William Sierra was
39 in ECW Fan Cam: November 23, 1996
as 'Bill Alfonso (Manager)'.
Sat, Nov 23 1996
Poster of ECW November to Remember 1996
ECW November to Remember 1996
William Sierra was
39 in ECW November to Remember 1996
as 'Bill Alfonso'.
Sat, Nov 16 1996
Poster of ECW High Incident
ECW High Incident
William Sierra was
39 in ECW High Incident
as 'Bill Alfonso (Manager)'.
Sat, Oct 26 1996
Poster of ECW Fan Cam: October 18, 1996
ECW Fan Cam: October 18, 1996
William Sierra was
39 in ECW Fan Cam: October 18, 1996
as 'Bill Alfonso (Manager)'.
Fri, Oct 18 1996
Poster of ECW Ultimate Jeopardy 1996
ECW Ultimate Jeopardy 1996
William Sierra was
39 in ECW Ultimate Jeopardy 1996
as 'Bill Alfonso'.
Sat, Oct 05 1996
Poster of ECW When Worlds Collide 1996
ECW When Worlds Collide 1996
William Sierra was
39 in ECW When Worlds Collide 1996
as 'Bill Alfonso'.
Sat, Sep 14 1996
Poster of ECW Natural Born Killaz
ECW Natural Born Killaz
William Sierra was
39 in ECW Natural Born Killaz
as 'Bill Alfonso (Manager)'.
Sat, Aug 24 1996
Poster of ECW The Doctor is In
ECW The Doctor is In
William Sierra was
38 in ECW The Doctor is In
as 'Bill Alfonso'.
Sat, Aug 03 1996
Poster of ECW Fan Cam: July 28, 1996
ECW Fan Cam: July 28, 1996
William Sierra was
38 in ECW Fan Cam: July 28, 1996
as 'Bill Alfonso'.
Sun, Jul 28 1996
Poster of ECW Hardcore Heaven 1996
ECW Hardcore Heaven 1996
William Sierra was
38 in ECW Hardcore Heaven 1996
as 'Bill Alfonso'.
Sat, Jun 22 1996
Poster of ECW A Matter of Respect
ECW A Matter of Respect
William Sierra was
38 in ECW A Matter of Respect
as 'Bill Alfonso (Manager)'.
Sat, May 11 1996
Poster of ECW Fan Cam: May 10, 1996
ECW Fan Cam: May 10, 1996
William Sierra was
38 in ECW Fan Cam: May 10, 1996
as 'Bill Alfonso (Manager)'.
Fri, May 10 1996
Poster of ECW Hostile City Showdown 1996
ECW Hostile City Showdown 1996
William Sierra was
38 in ECW Hostile City Showdown 1996
as 'Bill Alfonso'.
Sat, Apr 20 1996
Poster of ECW Massacre on Queens Boulevard
ECW Massacre on Queens Boulevard
William Sierra was
38 in ECW Massacre on Queens Boulevard
as 'Bill Alfonso (Manager)'.
Sat, Apr 13 1996
Poster of ECW Big Ass Extreme Bash
ECW Big Ass Extreme Bash
William Sierra was
38 in ECW Big Ass Extreme Bash
as 'Bill Alfonso'.
Sat, Mar 09 1996
Poster of ECW Just Another Night
ECW Just Another Night
William Sierra was
38 in ECW Just Another Night
as 'Bill Alfonso'.
Fri, Feb 23 1996
Poster of ECW CyberSlam 1996
ECW CyberSlam 1996
William Sierra was
38 in ECW CyberSlam 1996
as 'Bill Alfonso'.
Sat, Feb 17 1996
Poster of ECW Big Apple Blizzard Blast
ECW Big Apple Blizzard Blast
William Sierra was
38 in ECW Big Apple Blizzard Blast
as 'Bill Alfonso'.
Sat, Feb 03 1996
Poster of ECW: January 27, 1996
ECW: January 27, 1996
William Sierra was
38 in ECW: January 27, 1996
as 'Bill Alfonso (Appearance)'.
Sat, Jan 27 1996
Poster of ECW House Party 1996
ECW House Party 1996
William Sierra was
38 in ECW House Party 1996
as 'Bill Alfonso (Manager)'.
Fri, Jan 05 1996
Poster of ECW Holiday Hell '95: The New York Invasion
ECW Holiday Hell '95: The New York Invasion
William Sierra was
38 in ECW Holiday Hell '95: The New York Invasion
as 'Bill Alfonso (Manager)'.
Fri, Dec 29 1995
Poster of ECW November to Remember 1995
ECW November to Remember 1995
William Sierra was
38 in ECW November to Remember 1995
as 'Bill Alfonso'.
Sat, Nov 18 1995
Poster of ECW Fan Cam: September 23, 1995
ECW Fan Cam: September 23, 1995
William Sierra was
38 in ECW Fan Cam: September 23, 1995
as 'Bill Alfonso (Referee)'.
Sat, Sep 23 1995
Poster of ECW Gangsta's Paradise
ECW Gangsta's Paradise
William Sierra was
38 in ECW Gangsta's Paradise
as 'Bill Alfonso (Troubleshooting Referee)'.
Sat, Sep 16 1995
Poster of ECW Sunshine State Slaughter
ECW Sunshine State Slaughter
William Sierra was
38 in ECW Sunshine State Slaughter
as 'Bill Alfonso (Troubleshooting Referee)'.
Sun, Aug 20 1995
Poster of ECW Heat Wave 1995
ECW Heat Wave 1995
William Sierra was
37 in ECW Heat Wave 1995
as 'Bill Alfonso (Troubleshooting Referee)'.
Sat, Jul 15 1995
Poster of ECW Hardcore Heaven 1995
ECW Hardcore Heaven 1995
William Sierra was
37 in ECW Hardcore Heaven 1995
as 'Bill Alfonso (Troubleshooting Referee)'.
Sat, Jul 01 1995
Poster of ECW Mountain Top Madness
ECW Mountain Top Madness
William Sierra was
37 in ECW Mountain Top Madness
as 'Bill Alfonso'.
Fri, Jun 30 1995
Poster of ECW Barbed Wire, Hoodies and Chokeslams
ECW Barbed Wire, Hoodies and Chokeslams
William Sierra was
37 in ECW Barbed Wire, Hoodies and Chokeslams
as 'Bill Alfonso (State Appointed Referee)'.
Sat, Jun 17 1995
Poster of ECW Enter The Sandman
ECW Enter The Sandman
William Sierra was
37 in ECW Enter The Sandman
as 'Bill Alfonso (Troubleshooting Referee)'.
Sat, May 13 1995
Poster of WWE Bloopers Bleeps and Bodyslams
WWE Bloopers Bleeps and Bodyslams
William Sierra was
36 in WWE Bloopers Bleeps and Bodyslams
as 'Bill Alfonso'.
Wed, Jun 29 1994

TV Shows (Acting Roles)

Sorted by Release Date
Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages
Poster of WWE Raw
WWE Raw
William Sierra was
35+ in WWE Raw
as 'Bill Alfonso'.
First Air Date
Mon, Jan 11 1993
Poster of WWF Wrestling Challenge
WWF Wrestling Challenge
William Sierra was
29+ in WWF Wrestling Challenge
as 'Bill Alfonzo'.
First Air Date
Sun, Sep 07 1986