Name	Known for
Donnie Wahlberg Self - Host Self - Host See fewer	Saw II (2005)
Alan R. Warren Self - Author, 'The Killing Game: The True Story of Rodney Alcala' Self - Author, 'The Killing Game: The True Story of Rodney Alcala' See fewer	The John Wayne Gacy Murders: Life and Death in Chicago (2024)
Stephanie Elam Self - CNN Correspondent Self - CNN Correspondent See fewer	Fatale (II) (2020)
Steve Hodel Self - Former LAPD Detective Self - Former LAPD Detective See fewer	Most Evil (2006)
Chris Camacho Self - Former LAPD Officer Self - Former LAPD Officer See fewer	People Magazine Investigates: Surviving a Serial Killer (2024)
Tali Shapiro Self - Survivor Self - Survivor See fewer	Dating Death (2022)
Casey Jordan Self - Criminologist Self - Criminologist See fewer	The Leftovers (2014)
Gina Satriano Self - Deputy District Attorney, Los Angeles County Self - Deputy District Attorney, Los Angeles County See fewer	City of Angels, City of Death (2021)
Wendell Stradford Self - Former NYPD Cold Case Unit Member Self - Former NYPD Cold Case Unit Member See fewer	Cold Case Files (2017)
Martha Bashford Self - Former Co-Chief of DNA Cold Case Unit, Manhattan District Attorney's Office Self - Former Co-Chief of DNA Cold Case Unit, Manhattan District Attorney's Office See fewer	Dating Death (2022)
Steve Mack Self - Former Huntington Beach Detective Self - Former Huntington Beach Detective See fewer	Forensic Files (1996)
Mary Ellen O'Toole Self - Former FBI Profiler Self - Former FBI Profiler See fewer	Wild Crime (2021)
Cliff Shepard Self - Former LAPD Cold Case Detective (as Clifford Shepard) Self - Former LAPD Cold Case Detective (as Clifford Shepard) See fewer	Beyond Reasonable Doubt (II) (2017)
Sheila Weller Self - Author & Victim's Cousin Self - Author & Victim's Cousin See fewer	Girls Like Us (I)
Bruce Barcomb Self - Victim's Brother Self - Victim's Brother See fewer	Dating Death (2022)
Rodney Alcala Self - Serial Killer Convicted of Multiple Murders (archive footage) Self - Serial Killer Convicted of Multiple Murders (archive footage) See fewer	The Dating Game (1965)
Jill Barcomb Self - Murder Victim (archive footage) Self - Murder Victim (archive footage) See fewer
Steve Bosh Self - News Anchord, WPIX-II News (archive footage) (as Stephen Bosh) Self - News Anchord, WPIX-II News (archive footage) (as Stephen Bosh) See fewer	Desperately Seeking Susan (1985)
Cheryl Bradshaw Self - Bachelorette, The Dating Game (archive footage) Self - Bachelorette, The Dating Game (archive footage) See fewer	The Dating Game (1965)
Armand Cerami Self - Contestant, The Dating Game (archive footage) Self - Contestant, The Dating Game (archive footage) See fewer	The Blues Brothers (1980)
Cornelia Crilley Self - Murder Victim (archive footage) Self - Murder Victim (archive footage) See fewer
Sammy Davis Jr. Self - Godfather of Ellen Hover (archive footage) Self - Godfather of Ellen Hover (archive footage) See fewer	The Cannonball Run (1981)
Audrey Fletcher Self - LAPD Sergeant (archive footage) Self - LAPD Sergeant (archive footage) See fewer
Ellen Hover Self - Murder Victim (archive footage) Self - Murder Victim (archive footage) See fewer
Herman Hover Self - Father of Ellen Hover (archive footage) Self - Father of Ellen Hover (archive footage) See fewer	The Colgate Comedy Hour (1950)
Jim Lange Self - Host, The Dating Game (archive footage) Self - Host, The Dating Game (archive footage) See fewer	Confessions of a Dangerous Mind (2002)
Dean Martin Self - Godfather of Ellen Hover (archive footage) Self - Godfather of Ellen Hover (archive footage) See fewer	The Dean Martin Show (1965)
Jed Mills Self - Contestant, The Dating Game (archive footage) Self - Contestant, The Dating Game (archive footage) See fewer	Casino (1995)