Christopher Ashley Director Jeanna de Waal Princess Diana Actor Erin Davie Camilla Parker Bowles Actor Roe Hartrampf Prince Charles Actor Judy Kaye Queen Elizabeth II Actor Bruce Dow Paul Burrell , Ensemble Actor Gareth Keegan James Hewitt , Ensemble Actor Nathan Lucrezio Andrew Morton , Ensemble Actor André Jordan Colin , Ensemble Actor Chris Medlin Graham , Ensemble Actor Joe DiPietro Screenwriter, Executive Producer Frank Marshall Producer Beth Williams Producer Alec Sash Executive Producer Aly Parker Executive Producer Nina Shiffman Executive Producer Gary Levy Film Editing David Bryan Original Music David Zinn Production Design William Ivey Long Costume Design Declan Quinn Cinematographer David Bryan Executive Producer Allan Williams Executive Producer Kate Sanford Film Editor