Guest Stars Aiylah Bhimani as Poppy Shamsie Karl Collins as Carsten Hughes Sarah Smart as Siobhan O'Hara Rebecca Front as Diana Hopkinson Nigel Lindsay as Ricky Hopkinson Dermot Keaney as Taffy Clarke Che Walker as Steve O'Hara Ricardo Castro as Paulo Mendez Cengiz Dervis as Marac Ata Jack Cooper Stimpson as Finn Davidson Craig Blake as Artie Sylvester David Wayman as Estate Agent