Guest Stars Louise Brealey as Cass Geoffrey McGivern as Uncle Geoff Penny Downie as Ellen Jessica Gunning as Jan Olivia Poulet as Alison Oliver Maltman as Mike Caius Luckyn-Malone as Young Andrew Sebastian Patterson as Young Stephen Matthew Holness as Laurie Emily Lloyd-Saini as Sarah Giles Michael Wildman as Tom Tony Gardner as Nick Molloy Carsten Hayes as Taxi Driver Catriona Knox as Flight Attendant Laurence Howarth as Martin Coburn Naomi Morris as Janette Laurence Ubong Williams as Cafe Waiter Rebecca Herod as Woman in Cafe Alberto Maneiro as Basque Passenger
