Where to watch William Sierra in the UK
Find every William Sierra film and TV show streaming, free, or available to rent in the UK. Updated daily — verified 5 May 2026.
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 tra…
William Sierra films streaming in the UK
Most-watched films featuring William Sierra, available across UK streaming, rent and buy.
William Sierra TV shows streaming in the UK
Selected TV credits featuring William Sierra.
Full filmography
Every credit ScreenSearch indexes for William Sierra, ranked by popularity. Click any title for UK streaming, rent and buy options.
- Raw (1993) as Bill Alfonso
- WWF Wrestling Challenge (1986) as Bill Alfonzo
- Mid-Atlantic Championship Wrestling (1981) as Bill Alfonso (Referee)
- WWE: Undertaker 20-0 - The Streak (2012) as Bill Alfonso - Referee (archive footage)
- ECW Barely Legal 1997 (1997) as Bill Alfonso (Manager)
- ECW Big Ass Extreme Bash 1996 (1996) as Bill Alfonso
- ECW High Incident (1996) as Bill Alfonso (Manager)
- WWE Bashed in the USA (1993) as Bill Alfonso
- MLW Hybrid Hell (2003) as Bill Alfonso (Manager)
- ECW Heat Wave 2000 (2000) as Bill Alfonso (Manager)
- ECW Path of Destruction (2000) as Bill Alfonso (Manager)
- ECW Fan Cam: September 23, 1995 (1995) as Bill Alfonso (Referee)
- ECW House Party 1999 (1999) as Bill Alfonso
- ECW House Party 1996 (1996) as Bill Alfonso (Manager)
- ECW Hardcore Heaven 1997 (1997) as Bill Alfonso (Manager)
- ECW Heat Wave 1997 (1997) as Bill Alfonso (Manager)
- MLW War Games (2003) as Bill Alfonso
- ECW Wrestlepalooza 1997 (1997) as Bill Alfonso (Manager)
- ECW Living Dangerously 1998 (1998) as Bill Alfonso
- ECW Holiday Hell 1995 (1995) as Bill Alfonso (Manager)
- ECW Fan Cam: November 23, 1996 (1996) as Bill Alfonso (Manager)
- ECW Heat Wave 1998 (1998) as Bill Alfonso
- ECW Fan Cam: December 17, 1999 (1999) as Bill Alfonso (Manager)
- ECW Big Apple Blizzard Blast (1996) as Bill Alfonso
- ECW November to Remember 1995 (1995) as Bill Alfonso
- ECW Gangstas Paradise 1995 (1995) as Bill Alfonso (Troubleshooting Referee)
- ECW November To Remember 1998 (1998) as Bill Alfonso (Manager)
- ECW Fan Cam: October 31, 1997 (1997) as Bill Alfonso (Manager)
- ECW The Doctor Is In 1996 (1996) as Bill Alfonso
- ECW November to Remember 1999 (1999) as Bill Alfonso (Manager)
- ECW Massacre on Queens BLVD (1996) as Bill Alfonso (Manager)
- WWE Bloopers Bleeps and Bodyslams (1994) as Bill Alfonso
- ECW: Bloodsport The Most Violent Matches (2006) as Bill Alfonso
- ECW Enter the Sandman 1995 (1995) as Bill Alfonso (Troubleshooting Referee)
- ECW Fan Cam: February 6, 1999 (1999) as Bill Alfonso (Manager)
- ECW: Extreme Evolution (2000) as Bill Alfonso (Manager)
- ECW Crossing The Line 1999 (1999) as Bill Alfonso
- ECW House Party 1998 (1998) as Bill Alfonso
- The Best of The Eliminators (1998) as Bill Alfonso (Manager)
- ECW Mountain Top Madness (1995) as Bill Alfonso
- ECW: The Best of Cactus Jack (2001) as Bill Alfonso
- ECW Living Dangerously 1999 (1999) as Bill Alfonso (Manager)
- ECW Hardcore History (2001) as Bill Alfonso (Referee)
- ECW CyberSlam 1998 (1998) as Bill Alfonso (Manager)
- ECW Anarchy Rulz 2000 (2000) as Bill Alfonso (Manager)
- ECW Hardcore Heaven 1995 (1995) as Bill Alfonso (Troubleshooting Referee)
- ECW Sunshine State Slaughter (1995) as Bill Alfonso (Troubleshooting Referee)
- ECW Born To Be Wired (1997) as Bill Alfonso
- WWE: Blood Sport ECW - The Most Violent Matches (2006) Cast
- WrestleCade Supershow 2019 (2019) as Bill Alfonso
- ECW Just Another Night 1996 (1996) as Bill Alfonso
- ECW November to Remember 1996 (1996) as Bill Alfonso
- ECW November to Remember 1997 (1997) as Bill Alfonso (Manager)
- ECW Heat Wave 1999 (1999) as Bill Alfonso
- ECW A Matter of Respect 1996 (1996) as Bill Alfonso (Manager)
- ECW: January 27, 1996 (1996) as Bill Alfonso (Appearance)
- ECW Fan Cam: February 14, 1997 (1997) as Bill Alfonso (Manager)
- MLW Rise of The Renegades (2003) Cast
- ECW Fan Cam: March 7, 1998 (1998) as Bill Alfonso (Manager)
- ECW Fan Cam: April 4, 1997 (1997) as Bill Alfonso (Manager)
- ECW Ultimate Jeopardy 1996 (1996) as Bill Alfonso
- ECW Fan Cam: August 25, 2000 (2000) as Bill Alfonso (Manager)
- ECW Barbed Wire, Hoodies and Chokeslams (1995) as Bill Alfonso (State Appointed Referee)
- WWA The Revolution (2002) as Bill Alfonso
- ECW Wrestlepalooza 1998 (1998) as Bill Alfonso
- Hardcore Homecoming (2005) as Bill Alfonso (Manager)
- ECW Heat Wave 1995 (1995) as Bill Alfonso (Troubleshooting Referee)
- The Best of Shane Douglas (1998) as Bill Alfonso (Manager)
- ECW Natural Born Killaz (1996) as Bill Alfonso (Manager)
- ECW Fan Cam: July 28, 1996 (1996) as Bill Alfonso
- ECW Guilty as Charged 1999 (1999) as Bill Alfonso
- ECW Fan Cam: October 23, 1999 (1999) as Bill Alfonso (Manager)
- ECW Guilty as Charged 2000 (2000) as Bill Alfonso (Manager)
- ECW CyberSlam 1999 (1999) as Bill Alfonso (Manager)
- ECW Hardcore Heaven 1996 (1996) as Bill Alfonso
- ECW Fan Cam: May 2, 1997 (Barely Legal II) (1997) as Bill Alfonso (Manager)
- ECW Hardcore Heaven 1999 (1999) as Bill Alfonso (Manager)
- Battleground Championship Wrestling (2021) as Bill Alfonso
- ECW Holiday Hell 1996 (1996) as Bill Alfonso
- ECW Fan Cam: May 3, 1997 (1997) as Bill Alfonso (Manager)
William Sierra — FAQ
Where can I watch William Sierra films in the UK?
William Sierra's films and TV shows are available across UK streaming services. Click any title in the filmography below to see exactly which UK service has it — Netflix, Amazon Prime Video, Disney+, Apple TV+, BBC iPlayer, ITVX, NOW, Sky, MUBI and more — updated daily.
What are William Sierra's most popular films?
Most-watched William Sierra films currently: WWE: Undertaker 20-0 - The Streak (2012), ECW Barely Legal 1997 (1997), ECW Big Ass Extreme Bash 1996 (1996), ECW High Incident (1996), WWE Bashed in the USA (1993).
What TV shows has William Sierra appeared in?
Selected TV credits: Raw (1993), WWF Wrestling Challenge (1986), Mid-Atlantic Championship Wrestling (1981).
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