Special Guest Stars Frances Conroy as Bebe Babbitt Billy Eichner as Tex Watson Guest Stars Adina Porter as Beverly Hope Chaz Bono as Gary K. Longstreet Cameron Cowperthwaite as Speedwagon Dennis Cockrum as Senator Herbert Jackson Leslie Grossman as Patricia Krenwinkel Sarah Yarkin as Riley Rachel Roberts as Sharon Tate Co Starring Jess Allen as Sandstorm Johnny Gorman as Heart Attack Kaiwi Lyman-Mersereau as Gutterball Dustin King as Tripod Mary Beth McDade as Female Anchor Frank Gallegos as Cameraman Charlie Farrell as Jay Sebring Annie Gonzalez as Demonstrator Cathy Marks as Dorothy Alexandra Hensley as Abigail Folger Riley Rose Critchlow as Woman Monique Gall as Bailey Miraj Grbic as Wojiech Frykowski Zachary Conneen as Steven Parent Uncredited Evan Peters as Charles Manson Billie Lourd as Linda Kasabian Sarah Paulson as Susan Atkins
