Bertie Carvel Adam Dalgliesh Actor Carlyss Peer DS Kate Miskin Actor Michael Culkin Hubert Langton Actor Charlotte McCurry Valerie Caldwell Actor Alistair Brammer Daniel Tarrant Actor Marsha Millar Dorothy Scully Actor Yaseen Aroussi Garry Ashe Actor Sara Stewart Venetia Aldridge Actor David Bamber Edgar Froggart Actor Brendan Mullin Producer Andy Tohill Director Ryan Tohill Director Elaine Pyke Executive Producer Willow Grylls Executive Producer Emily Russell Executive Producer Helen Edmundson Executive Producer