Guest Stars Lee Otway as Kez Wingfield Harry Anton as Trevor Rees-Jones Rufus Kampa as Young Prince William Fflyn Edwards as Young Prince Harry Amira Ghazalla as Salma, Mohamed's Secretary Kate Cook as Susie Orbach Philippe Spall as Parisian Dog Walker Paul Gorostidi as Philippe Dourneau Fred Ledoux as Thierry Rocher Yoann Blanc as Henri Paul Ben Lambert as Ben Murrell Emma Hindle as Balmoral Maid James Aldred as Ritz Waiter Mairi-Clare MacLean as Balmoral Operator