Tom Burke Cormoran Strike Actor Holliday Grainger Robin Ellacott Actor Andrew Brooke Niall Brockbank Actor Ben Crompton Shanker Actor Jessica Gunning Holly Brockbank Actor Matt King Whittaker Actor Kerr Logan DI Eric Wardle Actor Kierston Wareing Leda Strike Actor Fern Deacon Kelsey Actor Antonia Kinlay Sarah Shadlock Actor Nicholas Agnew Tom Actor Mollie Peacock Young Brittany Brockbank Actor Cosima Shaw Ellen (Social Worker) Actor Ann Akin DS Ekwensi Actor Tom Edge Writer, Executive Producer Jackie Larkin Producer Charles Sturridge Executive Producer Elizabeth Kilgarriff Executive Producer Neil Blair Executive Producer Ruth Kenley-Letts Executive Producer J.K. Rowling Executive Producer