Guest Stars Louisa Bay as Princess Vicky Laurie Shepherd as Prince Bertie Siobhan O'Carroll as Lady Lyttelton Kerr Logan as Patrick Fitzgerald Gregory Mann as William Monmouth Ellen Evans as Princess Heidi David Newman as Henry Cole Tristram Wymark as Henry Labouchere Pandora Clifford as Emily Palmerston Christopher Brand as Paxton Andrew Byron as King of Prussia Stephanie Fayerman as Old Lady Gaby French as Maid Lion Russell Baumann as Prince Sigmund James Bradwell as Mandarin