Louis Cyphre in Angel Heart: How De Niro’s Devil Became a Masterclass in Antagonist Design

Robert De Niro is on screen for four scenes and roughly fifteen minutes of Angel Heart, and he owns all of it. This analysis reads Louis Cyphre at the screenplay level: what each of his four visits does to the investigation, how the egg scene builds the Devil beat by beat, and why restraint reads as power. Five antagonist design principles for screenwriters, drawn from Alan Parker's commentary.







