Michael Chernus

as John Wayne Gacy

as Paul

as Michael Watts

as Theodore Bikel

as Jack

as Turboschmuck

as Mr. Dimming

as Self

as Eric (voice)

as Tom

as John Keathley

as Ricken Hale

as Pete Anderton

as Tommy

as David

as Ken Rosey

as Doug

as Dr Paul Wimsimer

as Jerry

as Everly Pirdoo

as Michael

as Grant Spinelli

as Bus Driver

as Male Nurse

as Mal

as Phineas Mason / The Tinkerer

as Dylan Heinz

as Jon Garth Murray

as Kyle

as Clyde Goodwin Jr.

as Kenny

as Edward Tavner

as Dylan

as Gary

as Roy

as Trofimov

as Freddie

as Louis "Fritz" Fedowitz

as Brian Colby

as Self

as Shane Murphy

as Cal Chapman

as Michael Chernus

as Jaimie

as Edwin Borstein

as Paul

as Arthur Ingram

as Jeffrey Price

as Ned

as Jerry

as Pastor Rick

as Michael

as Alan

as Ryan Flanagan

as Spencer Harman

as Francis Hamm

as Actor #3 / Twentysomething #1

as Louie

as Kirby

as New Jersey Bar Owner

as Humkin

as Ben

as Tommy Sullivan

as Jay Delaney