- Birth name - William Matthew Sierra
- Born - August 11, 1957 Portsmouth, New Hampshire, U.S.
- Ring name - Bill Alfonso
- Billed height - 5 ft 10 in (1.78 m)
- Billed weight - 161 lb (73 kg)
- Trained by - Extreme Championship Wrestling
- Debut - 1979
- World Championship Wrestling
- World Wrestling Federation / Entertainment (1980s) (2005–2006)
- Extreme Championship Wrestling (1995–2001)
- Total Nonstop Action Wrestling (2010)
- Xtreme Pro Wrestling
- Squared Circle Wrestling
- Pro Wrestling Unplugged
- Absolute Intense Wrestling
See Also[]
WWE Alumni -- WCW Alumni -- ECW Alumni -- TNA Alumni