Full Cast — Devil in Disguise: John Wayne Gacy (2025)

Michael Chernus

John Wayne Gacy

Gabriel Luna

Det. Rafael Tovar

James Badge Dale

Chief of Detectives Joe Kozenczak

Michael Angarano

Sam Amirante

Chris Sullivan

Lead Prosecutor Bill Kunkle

Marin Ireland

Elizabeth Piest

Greg Bryk

Harold Piest

Cricket Brown

Kerry Piest

Ted Dykstra

Det. Allen Fanholm

Thom Nyhuus

Kenneth Piest

Jake Horowitz

David Cram

Hamish Allan-Headley

Det. Michael Albrecht

Nina Kiri

Mary Amirante

Chloe Avakian

Patti Szyc

Sprague Grayden

Bessie Stapleton

Krista Bridges

Rosemarie Szyc

Michael Esper

Bob Motta

Augustus Prew

Jeffrey

Etienne Kellici

Samuel Stapleton

Mason Versaw

Robert Donnelly

Alex Paxton-Beesley

Helen

Eva Foote

Carol Gacy

Kristine Nielsen

Marion Gacy

Lena Pepe

Juanita

Christian Bako

Marko Butkovich

Jim Annan

Judge Louis Garippo

Mallory Bechtel

Mary Jane

Ryker Baloun

Robert Piest