Guest Stars Geff Francis as François Roussel Kirsty Bushell as Sylvie Samuel Barnett as Didier Laurent Jonathan Aris as Lucien de Bremont Flora Montgomery as Isabelle de Bremont Sara Powell as Cosette Faraud Lizzy McInnerny as Maria Pogarovsky Thomas Vernal as Jean-Claude Faraud Melanie Gutteridge as Béatrice de Keppel Valois Max Gold as Lever Pogarovsky Ashley Russell as Etiènne de Bremont Damola Adelaja as Lucas Jonathan Digby as Marc Nagel Mark Adams as Yves Madani