Guest Stars Jessica Gunning as Jan Penny Downie as Ellen Louise Brealey as Cass Geoffrey McGivern as Uncle Geoff Olivia Poulet as Alison Oliver Maltman as Mike Caius Luckyn-Malone as Young Andrew Matthew Holness as Laurie Julie Dray as Juliet Jonathan Watson as Dave Phaldut Sharma as Chris Charlie Baker as Alfie Tate Tommy Love as Diner Joanne Sandi as Librarian