Guest Stars Paul Chahidi as Ron Peter Capaldi as Randall Brown Tom Burke as Bill Kendall Hannah Tointon as Patricia "Kiki" DeLaine Peter Sullivan as Commander Laurie Stern Vincent Riotta as Raphael Cilenti Morgan Watkins as Norman Pike Hannah John-Kamen as Rosa Maria Ramirez Lizzie Brocheré as Camille Mettier Robert Whitelock as Detective Attwood Dominik Golding as Society Photographer Peter Temple as Peter Tufnell Roger Ringrose as Mr Chapman Lexy Howe as Mr Chapman's Secretary Neil McNulty as Michael