Park Dietz

Self - Forensic Psychiatrist

Craig Jackson

Self - Psychologist

Elizabeth Laugeson

Self - Psychologist

Claire Hardaker

Self - Online Hate Expert

Kelly Wang

Self - George's Mother

Junan Chen

Self - George's Father

Jinshuang Liu

Self - David's Mother

Richard Martinez

Self - Chris's Father

Deb Smith

Self - Elliot Rodger's Former Principal

Dylan Fontillas

Self - Witness

Cayla Bergman

Self - Witness (archive footage)

Sierra Swartz

Self - Witness (archive footage)

Lucy Briers

Narrator (voice)

Dan Zargo

Elliot Rodger (voice)

Audrey Lazzara

Blonde Yoga Girl (uncredited)