Guest Stars Patrick Walshe McBride as Sebastian Brudenell Amber Aga as DI Christina Marlowe Chance Perdomo as Hamish Kingly Fern Deacon as Lily Rattle Chizzy Akudolu as Sandra Kingly Malcolm Atobrah as Uzoma Oladapo Paul Thornley as Rex Olson Jo-Anne Knowles as Polly Rattle Henry Johnson as Young Hamish