Guest Stars Freddie Wise as Geoffrey Charles Richard Hope as Harris Pascoe Amelia Clarkson as Rosina Hoblyn John Macneill as Jacka Hoblyn Oscar Novak as Jeremy Poldark Sofia Oxenham as Tess Tregidden Woody Norman as Valentine Warleggan Wensdae Gibbons as Clowance Poldark Anthony Calf as William Wickham Lily Dodsworth-Evans as Cecily Hanson Rebecca Front as Lady Whitworth Eoin Lynch as John MacNamara Alexander Perkins as Stone