John Boorman Director, Screenwriter, Producer David Thewlis Bradley Actor Tamsin Egerton Ophelia Actor Vanessa Kirby Dawn Rohan Actor Caleb Landry Jones Percy Actor Richard E. Grant Major Cross Actor Sinead Cusack Grace Rohan Actor Brian F. O'Byrne RSM Digby Actor David Hayman Clive Rohan Actor Callum Turner Actor Kieran Corrigan Producer Jean Labadie Producer Seamus Deasy Cinematographer Ron Davis Film Editing Laura Grosu Casting Jina Jay Casting