Robert Lindsay Ben Harper Actor Zoë Wanamaker Susan Harper Actor Simon Kunz Guest Star Daniela Denby-Ashe Janey Harper Actor Paul Williamson Guest Star Gabriel Thomson Michael Harper Actor Vicki Pepperdine Guest Star Gerard Horan Guest Star Siobhan Hayes Actor Alex Dawson Actor Peter Capaldi Actor Keiron Self Actor Kris Marshall Actor Lucy Punch Guest Star Ben Hopkins Guest Star Rosemary Leach Actor Dewi Humphreys Director Fred Barron Writer James Hendrie Writer Andrea Solomons Writer Steve Armogida Writer Sophie Hetherington Writer Darin Henry Writer James Cary Writer Sophie Clarke-Jervoise Executive Producer Ian Brown Writer Jim Armogida Writer