Unknown Serial Killers of America poster

Unknown Serial Killers of America

★ 7.3 125 votes 2025–present 2 seasons · 15 episodes Returning Series Oxygen
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Starring
Laura MannionJoshua HenryAnthony Horton
Starring
Laura MannionJoshua HenryAnthony Horton
Ratings per Episode
246810
Votes per Episode
05101520

Unknown Serial Killers of America Episode Ratings Heatmap

AvgE1E2E3E4E5E6E7E8E9
S17.37.47.17.17.27.57.5
S27.17.37.27.27.26.77.0

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About

Explores the chilling cases of lesser-known serial killers whose crimes went unnoticed for years, leaving a trail of fear and unsolved murders before they were finally caught.

All Seasons

▶
Season 12025
7.310064h 12m
▶
Season 2
7.14993h 30m

Full Cast & Crew

Cast

Laura Mannion
Bryanna Fox Self - Criminologist, Self - Psychological Criminologist
Joshua Henry Detective, FBI Agent
Anthony Horton Detective, Self - Criminologist
Joni E. Johnston Self - Forensic Psychologist
Paige Wilcoxson Self - Forensic Psychologist
Joseph Foy Self - Ferndale Resident
Richard Harasym Self - Cold Case Investigator, Fort Myers PD (Ret.)
Glenna Whitley Self - Investigate Reporter
James Myers Self - Special Agent (Ret.), Florida Department of Law Enforcement

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