Martin Clunes William Shawcross Actor Julie Graham Mary Gilcrest Actor Cheryl Campbell Molly Gilcrest Actor Michael Begley Rick Straud Actor Claire Hackett Doris Actor Peta Cornish Kate Shawcross Actor Ricci McLeod Brendan Gilcrest Actor Dominick Baron Terence Gilcrest Actor Georgina Terry Julia Shawcross Actor James Greene Arnold Actor June Watson Mrs. Ball Actor Catherine Terris Mrs. Spalding Actor David Kennedy Billy Two Hats Actor Ian Bartholomew Housing Inspector Guest Star Joseph Bennett DS London Guest Star Daniel Betts Damien Fisk Guest Star Stefan Booth Steve Guest Star Georgia Flint Girl Next Door Guest Star Miranda Hart Penelope Guest Star Paterson Joseph Reuben Guest Star Simon Mattacks Bob Guest Star William Melling Boy Next Door Guest Star Peter Pacey Nicholas Guest Star Lucy Robinson Helen Fisk Guest Star Jo-Anne Stockham Karen Guest Star Andrew Watson Young Father Guest Star