Guest Stars Tristan Sturrock as Zacky Martin Louis Davison as Geoffrey Charles Richard Hope as Harris Pascoe Amelia Clarkson as Rosina Hoblyn James Wilby as Lord Falmouth John Macneill as Jacka Hoblyn John Hopkins as Sir Francis Basset Robin Ellis as Reverend Halse Rebecca Front as Lady Whitworth Mike Burnside as Nathaniel Pearce Max Bennett as Monk Adderley Danny Kirrane as Harry Harry Edward Bennett as Prime Minister Pitt Josh Taylor as Viscount Bollington Madeleine Knight as Joan Peter Ben Lambert as Sir John Peter