Guest Stars Ellie Drake as Young Rosie Aimee Drake as Young Rosie Ben Willbond as Chris Yasmine Akram as Helen Maya Kelly as Ellie Serena Evans as Grandma Oliver Gibbs as Young Ben Philip Jackson as Grandad John Nigel Planer as Gandalf Justin Edwards as Barney Jo Cameron Brown as Nana Carla Langley as Receptionist Phil Ellis as Captain Banana Crackers Sarah-Jane Potts as Lisa Bryony Afferson as Sophie Georgia Borne as Pool Attendant Alexandra Travers as Claire
