Benjamin David Christodoulou is an English rock musician, guitarist, songwriter, vocalist, lyricist and session musician, he is best known for his tenures with The Sisters of Mercy, Night By Night and Diamond Black.

The Sisters of Mercy are an English rock band formed in Leeds in 1980. After achieving early underground fame there, the band had their commercial breakthrough in the mid-1980s and sustained it until the early 1990s, when they stopped releasing new records in protest against their record company, WEA. Currently, although the band are a touring outfit only, they continue to perform new and unreleased music live.