William Cleworth-Piddington (4th April 1941 - 9th November 2012) was a Manchester-born actor and singer who achieved national iconic status for his portrayal of Jack Duckworth on Coronation Street, a role he played from 1979 (continuously since 1983) to 2010. Prior to his casting as Jack, William had appeared on numerous Street episodes as a background extra, mainly in the Rovers Return Inn, being credited in October 1977 as a Darts Player and in December 1978 as Jack Rowe. He also appeared in Strangers, Crown Court and The Glamour Girls.
Tarmey suffered a major heart attack in 1976, and had infrequent health problems thereafter, but that did not hinder his status as one of the programme's longest-serving and most popular actors. In 2001, a documentary entitled Jack & Bill was made about his time on Coronation Street. In 2008 it was reported in the media that he would quit his 29-year role as Jack Duckworth (his screen wife Elizabeth Dawn had recently retired from the programme due to health problems) but Bill refuted those claims and vowed to carry on until at least his thirtieth anniversary on the show.
Tarmey's other television credits include Crown Court and Strangers. Also an accomplished singer, he released several albums.