Who is Sophia Maddox? Charles Manson's granddaughter uncovers family secret in chilling new documentary

Sophia Maddox, a 26-year-old Los Angeles-based filmmaker and actress, discovered she is the biological granddaughter of Charles Manson.

Maddox's father, Daniel Arguelles, confirmed via DNA testing in 2022 that Charles Manson was his biological father.

Her Hulu documentary, 'My Grandfather Charles Manson,' premieres on July 22, 2026, and chronicles her journey following the discovery.

Arguelles matched with Michael Brunner, one of Charles Manson's known sons, on Ancestry.com, leading to the confirmation.