Name	Known for
David Muir Self - Co-Host Self - Co-Host See fewer	Life (I) (2017)
Amy Robach Self - Co-Host Self - Co-Host See fewer	Ocean's Eight (2018)
Rodney Alcala Self - Convicted Serial Killer (archive footage) Self - Convicted Serial Killer (archive footage) See fewer	The Dating Game (1965)
Bruce Barcomb Self / Jill's brother Self / Jill's brother See fewer	Dating Death (2022)
Jill Barcomb Self / victim (archive footage) Self / victim (archive footage) See fewer
Leon Borstein Self / Cornelia Crilley's boyfriend Self / Cornelia Crilley's boyfriend See fewer	20/20 (1978)
Steve Braccini Self / NYPD detective Self / NYPD detective See fewer	20/20 (1978)
Cheryl Bradshaw Self / contestant (archive footage) Self / contestant (archive footage) See fewer	The Dating Game (1965)
Al Burke Chris Camacho Jr. Chris Camacho Jr. See fewer	The Wedding Singer (1998)
Chris Camacho Self / former LAPD officer Self / former LAPD officer See fewer	People Magazine Investigates: Surviving a Serial Killer (2024)
Chris Connelly Self - ABC News Contributor Self - ABC News Contributor See fewer	Last Action Hero (1993)
Marianne Connelly Self / Robin's mother (archive footage) Self / Robin's mother (archive footage) See fewer
Cornelia Crilley Self / stewardess (archive footage) Self / stewardess (archive footage) See fewer
Anita Feinberg Self / Ellen's friend Self / Ellen's friend See fewer	20/20 (1978)
Jami Floyd Self / ABC legal analyst Self / ABC legal analyst See fewer	The Vanishing of Harry Pace (2021)
David Greenfield Self / producer Self / producer See fewer	Couch Potatoes (1989)
Steve Hodel Self / former LAPD detective Self / former LAPD detective See fewer	Kulturplatz (2004)
Ellen Hover Self / victim (archive footage) Self / victim (archive footage) See fewer
Charlotte Lamb Self / victim (archive footage) Self / victim (archive footage) See fewer
Bill McCreary Self / reporter (archive footage) Self / reporter (archive footage) See fewer	New York Undercover (1994)
Ellen Halpern Metzger Self / coordinator Self / coordinator See fewer	Super Bloopers and Practical Jokes (1984)
Mike Metzger Self / executive producer Self / executive producer See fewer	The Newlywed Game (1977)
Jed Mills Self / bachelor Self / bachelor See fewer	Casino (1995)
Matt Murphy Self / ABC contributor Self / ABC contributor See fewer	I Escaped My Killer (2015)
Jill Parenteau Self / victim (archive footage) Self / victim (archive footage) See fewer
Christine Pelisek Self / People magazine editor Self / People magazine editor See fewer	People Magazine Investigates: Surviving a Serial Killer (2024)
Robin Samsoe Self / victim (archive footage) Self / victim (archive footage) See fewer
Stella Sands Self / author Self / author See fewer	The Perfect Murder (2014)
Gina Satriano Self / deputy d.a. Self / deputy d.a. See fewer	City of Angels, City of Death (2021)
Tali Shapiro Self / survivor Self / survivor See fewer	Dating Death (2022)
Alex Spiro Self / Manhattan D.A. Self / Manhattan D.A. See fewer	SBS World News (2002)
Veronica Thomas Self / court appointed psychiatrist Self / court appointed psychiatrist See fewer	20/20 (1978)
Barbara Walters Self / ABC news anchor (archive footage) Self / ABC news anchor (archive footage) See fewer	The Barbara Walters Summer Special (1976)
Georgia Wixted Self / victim (archive footage) Self / victim (archive footage) See fewer