Robert Lindsay Ben Harper Actor Gabriel Thomson Michael Harper Actor Daniela Denby-Ashe Janey Harper Actor Siobhan Hayes Actor Rhodri Meilir Actor Tayler Marshall Actor Eric Sykes Guest Star Robert Bathurst Guest Star Rosemary Leach Actor Emma Amos Guest Star Lexi Strauss Guest Star Ty Glaser Guest Star Jeremy Clyde Guest Star Geoffrey McGivern Guest Star Lorraine Chase Guest Star Zoë Wanamaker Susan Harper Actor Keiron Self Actor Dewi Humphreys Director Fred Barron Writer Steve Armogida Writer Tom Anderson Writer George Jeffrie Writer Ed Dyson Writer David Cantor Writer Brian Leveson Writer Tom Leopold Executive Producer Jim Armogida Writer Bert Tyler-Moore Writer Paul Minett Writer