Mark Williams Father Brown Actor Sorcha Cusack Mrs McCarthy Actor Pooky Quesnel Ruth Moore Actor Richard Lumsden Peter Blackstone Actor Paul Lacoux Doctor Harris Actor Eleanor Wyld Catherine Blackstone Actor Will Richardson Alexander Moore Actor Ryan Watson Iain Moore Actor Alex Price Sid Carter Actor Jack Deam Inspector Mallory Actor John Burton Sergeant Goodfellow Actor Nancy Carroll Lady Felicia Actor Rob Kinsman Writer Caroline Slater Producer James Larkin Director Will Trotter Executive Producer