Mark Williams Father Brown Actor Sorcha Cusack Mrs McCarthy Actor Hugo Speer Inspector Valentine Actor Ramon Tikaram Umesh Varma Actor Peter O'Connor Daniel Walsh Actor Pip Torrens Geoffrey Bennett Actor Bryony Afferson Elizabeth Barnes Actor Sam Crane William Knight Actor Penny Downie Rev Mother Augustine Actor Michael Maloney Kalon Actor Kasia Koleczek Susie Jasinski Actor Selina Cadell Sister Gregory Actor Louise Brealey Eleanor Knight Actor Robert Cavanah Leonard Quinton Actor Stephen Boxer Professor Patrick Galloway Actor Holly Earl Ruth Bennett Actor Sam Hoare Norman Bohun Actor Barry Sloane Simeon Barnes Actor Will Trotter Executive Producer John Yorke Executive Producer Dominic Keavey Director Jude Tindall Writer Lol Fletcher Writer Ian Barber Director Paul Matthew Thompson Writer Rachel Flowerday Writer Tahsin Guner Writer Nicola Wilson Writer Rebecca Wojciechowski Writer Dan Muirden Writer