Guest Stars Siân Brooke as Karen Oliver Chris as Freddy Darren Boyd as Scott Ophelia Lovibond as Erica Phil Davis as Vic Robyn Cara as Jen Marian McLoughlin as Jilly Paula Wilcox as Sandra Roderick Smith as John Imelda Staunton as Penny Co Starring Ava Talbot as Lauren Colin Mace as Michael Grafton Dan March as Water Cooler Man 1 Lorna Brown as Samantha Maxine Finch as Julie Okolo Renu Brindle as Nina Malik Rick Bacon as Simon Davis Cally Lawrence as Jeanette Hale Fen Wilson as Julie Farnby Fergal McElherron as Caoimhín Óg Ó hEachthighearna James Millard as Water Cooler Man 2