Mark Rosman Director Ben Cross Prince Charles Actor Camilla Luddington Kate Middleton Actor Serena Scott Thomas Carole Middleton Actor Nico Evers-Swindell Prince William Actor Mary Elise Hayden Pippa Middleton Actor Louise Linton Vanessa Actor Jonathan Patrick Moore Ian Actor Samantha Whittaker Olivia Actor Richard Reid Derek Actor Justin Hanlon Prince Harry Actor Theo Cross Trevor Actor Nancey Silvers Screenwriter Kyle A. Clark Producer Eileen Fields Producer Frank Konigsberg Executive Producer Anthony B. Richmond Cinematographer Charles Bornstein Film Editing Ken Watkins Art Director Salvador Pérez Jr. Costume Design