Kerri Rawson

Daughter of Dennis Rader, the BTK Killer

Dennis Rader

Serial Killer (archive footage)

Andrea Rogers

Kerri's Childhood Friend

Rita Sheffield

Kerri's Childhood Friend

Richard LaMunyon

Former Chief of Police, Wichita

James Reed

Osage County Sheriff's Office

Ray Lundin

Former Agent, Kansas Bureau of Investigation

Larry Hatteberg

Former Journalist, KAKE TV Wichita

Bill Hirschman

Former Journalist, The Wichita Eagle

Susan Peters

Former Anchor, KAKE TV Wichita

Paula Dietz

Dennis Rader's Ex-Wife (archive footage)

Kathryn Bright

Murder Victim (archive footage)

Kevin Bright

Survivor and Brother of Kathryn Bright (archive footage)

Vicki Wegerle

Murder Victim (archive footage)

Stephanie Clyne

Daughter of Vicki Wegerle (archive footage)

Dolores E. Davis

Murder Victim (archive footage)

Jeff Davis

Son of Dolores Davis (archive footage) (as Jeffery Davis)

Nola Foulston

Former Sedgwick County DA (archive footage)

Nancy Fox

Murder Victim (archive footage)

Dale Fox

Father of Nancy Fox (archive footage)

Beverly Plapp

Sister of Nancy Fox (archive footage)

Marine Hedge

Murder Victim (archive footage)

Rodney Hook

Son-in-Law of Marine Hedge (archive footage)

Glen Horn

Former KAKE News Director (archive footage)

Ken Landwehr

Former Homicide Detective, Wichita PD (archive footage)

Julie Otero

Murder Victim (archive footage)

Joseph Otero Jr.

Murder Victim (archive footage)

Josephine Otero

Murder Victim (archive footage)

Charlie Otero

Son and Brother of the Oteros (archive footage)

Carmen Otero Montoya

Daughter and Sister of the Oteros (archive footage)

Shirley Vian

Murder Victim (archive footage)

Steve Relford

Son of Shirley Vian (archive footage)

J. Jesse Harley

Young Dennis Rader (uncredited)

Charlie Rose

Host, CBS This Morning (archive footage)

Stephen King

Author, 'The Good Marriage' / Guest, CBS This Morning (archive footage)

Erin Moriarty

Correspondent (voice) (archive footage)