William Glencross (born 25 March 1973) is the vocalist for doom metal band Black Widow, and one of its founders in 1988 alongside guitarist Joel Davidson. Glencross was 18 years old when Black Widow started in 1989. He is married and has two children (Jeremy and Claudia). He lives in Stapleford, UK, with his wife and children. He is also of Irish decent by his mother Siobhan, and has confessed to having a deep interest in Celtic culture and mythology.