John Karyus

John Wayne Gacy

Lloyd Kaufman

Papa Gacy

Eileen Dietz

Angry Lady

Steve Hansen

Narrator

Caleb Emerson

Peter Nooch Sr.

John R. Walker

Officer Cordell

Josh Cornell

Brian Thomson

Matt Osborn

Prosecutor

Kayla Bushell

Marylin Myers

Tyler Dolph

Officer Woodrow

Ryan Freeman

Pete

Klaus Freeman

Soda Pop Boy

Tom Devlin