John Wayne Gacy

John Wayne Gacy, also known as The Killer Clown, is a minor antagonist in Monster: The Jeffrey Dahmer Story.

He is a fictionalized version of the real-life serial killer who murdered 33 boys and young men, crimes for which he was executed on the same day that another serial killer, Jeffrey Dahmer, was baptized in prison.

He was portrayed by Dominic Burgess.