- Sharon Tate - Self (archive footage)
- Roman Polanski - Self - Widower of Sharon Tate (archive footage)
- Dianne Lake - Self - Former Family Member
- Catherine Share - Self - Former Family Member
- Bobby Beausoleil - Self - Former Family Member (voice)
- Dennis Wilson - Self (archive footage)
- Johnny Echols - Self - Lead Guitarist, Love
- Martin Luther King Jr. - Self (archive footage)
- Lyndon B. Johnson - Self (archive footage)
- Brooks Poston - Self - Former Family Member (voice) (archive sound)
- Michael Caine - Self (archive footage)
- Ronald Reagan - Self (archive footage)
- Peter Coyote - Self - Actor, Diggers Early Core Member
- Timothy Leary - Self (archive footage)
- Domenic Priore - Self - Author
- Kimberlé Crenshaw - Self - Civil Rights Expert
- Stokely Carmichael - Self (archive footage)
- Leslie Van Houten - Self - Former Family Member (voice) (archive sound)
- Jay Sebring - Self (archive footage)
- Linda Kasabian - Self - Former Family Member (archive footage)
- Voytek Frykowski - Self (archive footage)
- Susan Atkins - Self - Former Family Member (archive footage)
- Susan Atkins - Self - Former Family Member (voice) (archive sound)
- Barbara Hoyt - Self - Former Family Member (archive footage)
- Barbara Hoyt - Self - Former Family Member (voice) (archive sound)
- Terry Melcher - Self - Music Producer (voice) (archive sound)
- Terry Melcher - Self - Music Producer (archive footage)
- Tex Watson - Self - Former Family Member (archive footage)
- Tex Watson - Self - Former Family Member (voice) (archive sound)
- Lynette Fromme - Self - Former Family Member (archive footage)
- Steve Oney - Self - Journalist, Author
- Steve Oney - Self - Journalist
- Vincent Bugliosi - Self - Deputy District Attorney (archive footage)
- Deborah Herman - Self - Author
- Sandra Good - Self - Former Family Member (archive footage)
- Stephen Kay - Self - Deputy District Attorney
- Barbara Kopple
- Brooke Karzen
- Jill Burkhart
- Lesley Chilcott
- Rebecca Halpern
- Greg Berlanti
- Willa Yudell
- Leo Birenberg
- Christophe Beck
Michael Caine interpreta a Self (archive footage) en la serie.
Charles Manson interpreta a Self (archive footage) en la serie.
Capítulo disponible en las siguientes plataformas: