In the final, terrifying chapter of the most infamous crime of the 20th century, a dying Charles Manson is offered a chance to repent for his crimes, revealing horrific, never-before-seen details about the Sharon Tate murders—as well as a shocking twist.
| Actor | Role |
|---|---|
| WWes GillumCharles Manson (2017) | Charles Manson (2017) |
| DDavid BurkhartCharles Manson (1969) | Charles Manson (1969) |
| JJoseph BoehmInterviewer | Interviewer |
 Penelope CostopoulosSharon Tate | Sharon Tate |
| JJency Allison WeeksSusan Atkins | Susan Atkins |
 Skyler DavenportPatricia Krenwinkel | Patricia Krenwinkel |
| EEric C. SchneiderTex Watson | Tex Watson |
| CChelsey FairlessLinda Kasabian | Linda Kasabian |
| SStephanie FranklinLeslie Van Houten | Leslie Van Houten |
| TTyler CorieBobby Beausoleil | Bobby Beausoleil |
| VVanessa LeinaniAbigail Folger | Abigail Folger |
| AAdam DuncanJay Sebring | Jay Sebring |
 Matthan HarrisWojciech Frykowski | Wojciech Frykowski |
| SSteven StreitfeldSteven Parent | Steven Parent |
| CChad BozarthTerry Melcher | Terry Melcher |
 Stephen BrodieRoman Polanski | Roman Polanski |