William Sierra
- Compleanno:
- 08/11/1957
- Luogo di nascita:
- Tampa, Florida, USA:
 | The WRLD on GCW (2022) Bill Alfonso |
 | WrestleCade Supershow 2019 (2019) Bill Alfonso |
 | Barbed Wire City: The Unauthorized Story of Extreme Championship Wrestling (2013) Himself |
 | WWE: Undertaker 20-0 - The Streak (2012) Bill Alfonso - Referee (archive footage) |
 | WWE: Blood Sport ECW - The Most Violent Matches (2006) |
 | ECW: Bloodsport The Most Violent Matches (2006) Bill Alfonso |
 | Hardcore Homecoming (2005) Bill Alfonso (Manager) |
 | MLW War Games (2003) Bill Alfonso |
| | MLW Rise of The Renegades (2003) |
| | MLW Hybrid Hell (2003) Bill Alfonso (Manager) |
| | ECW: The Best of Cactus Jack (2001) Bill Alfonso |
| | MECW Inaugural Show (2001) |
 | ECW Hardcore History (2001) Bill Alfonso (Referee) |
 | ECW Path of Destruction (2000) Bill Alfonso (Manager) |
 | ECW Anarchy Rulz 2000 (2000) Bill Alfonso (Manager) |
| | ECW Fan Cam: September 9, 2000 (2000) Bill Alfonso (Manager) |
| | ECW Fan Cam: August 25, 2000 (2000) Bill Alfonso (Manager) |
 | ECW: Extreme Evolution (2000) Bill Alfonso (Manager) |
 | ECW Heat Wave 2000 (2000) Bill Alfonso (Manager) |
| | ECW Fan Cam: June 3, 2000 (2000) Bill Alfonso (Manager) |
 | ECW Living Dangerously 2000 (2000) Bill Alfonso (Appearance) |
| | ECW Fan Cam: January 27, 2000 (2000) Bill Alfonso |
 | ECW Guilty as Charged 2000 (2000) Bill Alfonso (Manager) |
| | ECW Fan Cam: December 17, 1999 (1999) Bill Alfonso (Manager) |
 | ECW November to Remember 1999 (1999) Bill Alfonso (Manager) |
| | ECW Fan Cam: October 23, 1999 (1999) Bill Alfonso (Manager) |
| | ECW Fan Cam: October 15, 1999 (1999) Bill Alfonso (Manager) |
 | ECW Anarchy Rulz 1999 (1999) Bill Alfonso (Manager) |
 | ECW Heat Wave 1999 (1999) Bill Alfonso |
| | ECW Fan Cam: May 29, 1999 (1999) Bill Alfonso (Manager) |
 | ECW Hardcore Heaven 1999 (1999) Bill Alfonso (Manager) |
 | ECW CyberSlam 1999 (1999) Bill Alfonso (Manager) |
 | ECW Living Dangerously 1999 (1999) Bill Alfonso (Manager) |
 | ECW Crossing The Line 1999 (1999) Bill Alfonso |
| | ECW Fan Cam: February 6, 1999 (1999) Bill Alfonso (Manager) |
| | ECW Fan Cam: January 30, 1999 (1999) Bill Alfonso (Manager) |
 | ECW House Party 1999 (1999) Bill Alfonso |
 | ECW Guilty as Charged 1999 (1999) Bill Alfonso |
 | ECW November To Remember 1998 (1998) Bill Alfonso (Manager) |
| | ECW Fan Cam: September 17, 1998 (1998) Bill Alfonso (Manager) |
 | ECW Heat Wave 1998 (1998) Bill Alfonso |
 | ECW A Matter of Respect 1998 (1998) Bill Alfonso (Manager) |
 | ECW It Ain't Seinfeld (1998) Bill Alfonso (Manager) |
 | ECW Wrestlepalooza 1998 (1998) Bill Alfonso |
| | The Best of Shane Douglas (1998) Bill Alfonso (Manager) |
| | ECW Fan Cam: March 7, 1998 (1998) Bill Alfonso (Manager) |
 | ECW Living Dangerously 1998 (1998) Bill Alfonso |
| | The Best of The Eliminators (1998) Bill Alfonso (Manager) |
 | ECW CyberSlam 1998 (1998) Bill Alfonso (Manager) |
 | ECW House Party 1998 (1998) Bill Alfonso |
 | ECW November to Remember 1997 (1997) Bill Alfonso (Manager) |
| | ECW Fan Cam: October 31, 1997 (1997) Bill Alfonso (Manager) |
 | ECW As Good As It Gets (1997) Bill Alfonso |
 | ECW Hardcore Heaven 1997 (1997) Bill Alfonso (Manager) |
 | ECW Born To Be Wired (1997) Bill Alfonso |
| | ECW Heat Wave 1997 (1997) Bill Alfonso (Manager) |
 | ECW Wrestlepalooza 1997 (1997) Bill Alfonso (Manager) |
| | ECW Fan Cam: May 16, 1997 (1997) Bill Alfonso (Appearance) |
| | ECW Fan Cam: May 3, 1997 (1997) Bill Alfonso (Manager) |
| | ECW Fan Cam: May 2, 1997 (Barely Legal II) (1997) Bill Alfonso (Manager) |
 | ECW Barely Legal 1997 (1997) Bill Alfonso (Manager) |
| | ECW Fan Cam: April 4, 1997 (1997) Bill Alfonso (Manager) |
| | ECW Fan Cam: March 22, 1997 (1997) Bill Alfonso (Manager) |
| | ECW Fan Cam: February 14, 1997 (1997) Bill Alfonso (Manager) |
 | ECW Holiday Hell 1996 (1996) Bill Alfonso |
| | ECW Fan Cam: November 23, 1996 (1996) Bill Alfonso (Manager) |
 | ECW November to Remember 1996 (1996) Bill Alfonso |
| | ECW High Incident (1996) Bill Alfonso (Manager) |
| | ECW Fan Cam: October 18, 1996 (1996) Bill Alfonso (Manager) |
 | ECW Ultimate Jeopardy 1996 (1996) Bill Alfonso |
| | ECW When Worlds Collide 1996 (1996) Bill Alfonso |
 | ECW Natural Born Killaz (1996) Bill Alfonso (Manager) |
 | ECW The Doctor is In (1996) Bill Alfonso |
| | ECW Fan Cam: July 28, 1996 (1996) Bill Alfonso |
 | ECW Hardcore Heaven 1996 (1996) Bill Alfonso |
 | ECW A Matter of Respect (1996) Bill Alfonso (Manager) |
| | ECW Fan Cam: May 10, 1996 (1996) Bill Alfonso (Manager) |
 | ECW Hostile City Showdown 1996 (1996) Bill Alfonso |
 | ECW Massacre on Queens Boulevard (1996) Bill Alfonso (Manager) |
 | ECW Big Ass Extreme Bash (1996) Bill Alfonso |
 | ECW Just Another Night (1996) Bill Alfonso |
 | ECW CyberSlam 1996 (1996) Bill Alfonso |
 | ECW Big Apple Blizzard Blast (1996) Bill Alfonso |
| | ECW: January 27, 1996 (1996) Bill Alfonso (Appearance) |
 | ECW House Party 1996 (1996) Bill Alfonso (Manager) |
 | ECW Holiday Hell '95: The New York Invasion (1995) Bill Alfonso (Manager) |
 | ECW November to Remember 1995 (1995) Bill Alfonso |
| | ECW Fan Cam: September 23, 1995 (1995) Bill Alfonso (Referee) |
 | ECW Gangsta's Paradise (1995) Bill Alfonso (Troubleshooting Referee) |
| | ECW Sunshine State Slaughter (1995) Bill Alfonso (Troubleshooting Referee) |
 | ECW Heat Wave 1995 (1995) Bill Alfonso (Troubleshooting Referee) |
 | ECW Hardcore Heaven 1995 (1995) Bill Alfonso (Troubleshooting Referee) |
 | ECW Mountain Top Madness (1995) Bill Alfonso |
 | ECW Barbed Wire, Hoodies and Chokeslams (1995) Bill Alfonso (State Appointed Referee) |
 | ECW Enter The Sandman (1995) Bill Alfonso (Troubleshooting Referee) |
 | WWE Bloopers Bleeps and Bodyslams (1994) Bill Alfonso |