Demi Moore Elisabeth Sparkle Margaret Qualley Sue Dennis Quaid Harvey Edward Hamilton-Clark Fred Gore Abrams Oliver Christian Erickson Man at Diner Robin Greer Male Nurse Hugo Diego Garcia Diego Olivier Raynal Alan Tiffany Hofstetter The Stylist Tom Morton The Doctor Oscar Lesage Troy Matthew Géczy Bob Haswell Philip Schurer Mr. Scream Namory Bakayoko Silhouette Vincent Colombe Suit Yann Bean “The Substance” (voice)