Crimes occultes

Nathalie Breuer

Narrator (voice)

Gilles Chamberland

Self - Psychiatrist

Christian Page

Self - Author & Journalist

Shirley Tatum

Self

Gerard Lopez

Self - Psychiatrist

Jacques Sirgent

Self - Historian

Cliff Linedecker

Self - Author

William Ramsey

Self - Author

Katherine Ramsland

Self - Professor of Forensic Psychology

Alexandra Doucet

Robin Murphy

Jo Di Mambro

Self (archive footage)

Luc Jouret

Self (archive footage)

Danny Gilmore

Richard Ramirez

Doreen Lioy

Herself

George Gavito

Self - Former Lieutenant, Cameron County Sheriff's Department

Dawn Perlmutter

Self - Ritual Murder Expert

Giomny Ruiz

Self - University of Montreal

Kenneth V. Lanning

Self - Former FBI Agent

Adolfo Constanzo

Self (archive footage)

Claire Booth

Self - Author

Julia Scheeres

Self - Journalist

William Veale

Self - Retired Chief Assistant Public Defender

Steve Nash

Self - Detective, Marin Count Sheriff's Department

Olga Land

Self