Guest Stars Louise Brealey as Cass Penny Downie as Ellen Geoffrey McGivern as Uncle Geoff 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 Michael Wildman as Tom Emily Lloyd-Saini as Sarah Giles Tony Gardner as Nick Molloy Naomi Morris as Janette Catriona Knox as Flight Attendant Laurence Howarth as Martin Coburn Laurence Ubong Williams as Cafe Waiter Carsten Hayes as Taxi Driver Rebecca Herod as Woman in Cafe Alberto Maneiro as Basque Passenger
