Britain's Most Evil Killers, World's Most Evil Killers and Ireland’s Most Evil Killers are British crime television programmes on Pick . First aired in 2017, the series are narrated by Fred Dinenage, and focus on the most notorious and depraved serial killers that were convicted during the past 50 years.

Frederick Edgar Dinenage is a British author, broadcaster and television presenter. His television career has spanned nearly 60 years, including the long-running children's programme How and ITV's regional programming in the south of England. Dinenage retired from presenting regional news on ITV Meridian on 16 December 2021, after 38 years as a news anchor.