Wiebke von Carolsfeld Director, Screenwriter Taylor Schilling Abbey Actor Aidan Quinn Dermot Actor Michael Ironside Frank Actor Barry Keoghan Sean Meehan Actor Nika McGuigan Deirdre Actor Chris McHallem Michael Actor Brian Gleeson Liam Actor Pascale Montpetit Celine Actor Carrie Crowley Marge Meehan Actor Andrew Boutilier Producer David Collins Producer Martin Paul-Hus Producer Mark Slone Executive Producer Ronald Plante Cinematographer Yvann Thibaudeau Film Editing Louise Kiely Casting John Hand Production Design Élisabeth Williams Production Design Johnny Mulvany Art Director