Angus Sinclair
Angus Sinclair is a serial killer responsible for multiple murders, as depicted in various documentaries.
Mark Hobson
Mark Hobson is a killer as depicted in World's Most Evil Killers - Season 3, Episode 10 and The Horrific Crimes of Mark Hobson.
Christopher Halliwell
Christopher Halliwell is a British serial killer convicted for the murder of Sian O'Callaghan and Becky Godden-Edwards.
David Heiss
David Heiss is a murderer who was the subject of World's Most Evil Killers in Season 3, Episode 15.
Christopher Hightower
Christopher Hightower is a murderer featured in World's Most Evil Killers - Season 4, Episode 3 (2021)
Angel Resendiz
Angel Resendiz, also known as The Railroad Killer, is a convicted serial killer responsible for multiple murders in the United States from 1986 to 1997.
Stephen Farrow
Stephen Farrow is featured in this episode as a killer, specifically from World's Most Evil Killers - Season 5
Russell Bishop
Russell Bishop is a convicted murderer responsible for the 1986 killings of two young girls, known as the 'Babes in the Wood' case
Jason Marshall
Jason Marshall is featured in 'World's Most Evil Killers' season 5 episode 3, implying he committed a series of murders.
Phillip Austin
Phillip Austin is a killer featured in World's Most Evil Killers - Season 5, Episode 1 (2021)
Colin Pitchfork
Colin Pitchfork is a convicted murderer in the United Kingdom who was found guilty of killing two girls, Nicole and Kay, in the late 1980s.
Keith Jesperson
Keith Jesperson is a notorious serial killer known as the 'Happy Face Killer' responsible for multiple murders in the U.S.
Jesse Matthew
Jesse Matthew is a convicted murderer, primarily known for the abduction and murder of Hannah Graham in 2014.
Chester Turner
Chester Turner is a serial killer convicted for the murders of multiple women in California during the late 1980s and early 1990s.
Judy Buenoano
Judy Buenoano is a convicted killer who was dubbed 'The Black Widow' for her series of murders and insurance scams from the mid-1970s to the late 1980s.
Geoffrey Evans
Geoffrey Evans is a subject in the World's Most Evil Killers series, indicating he is likely a convicted murderer.
Zahid Zaman
Zahid Zaman is the leader implicated in a series of crimes, as per 'The Ring Leader of Death', a true crime documentary from 2023.