Amma Asante Director David Oyelowo Seretse Khama Actor, Producer Rosamund Pike Ruth Williams Actor Jack Davenport Alistair Canning Actor Tom Felton Rufus Lancaster Actor Laura Carmichael Muriel Williams Actor Charlotte Hope Olivia Lancaster Actor Jack Lowden Tony Benn Actor Nicholas Lyndhurst George Williams Actor Jessica Oyelowo Lady Lilly Canning Actor Arnold Oceng Charles Actor Anastasia Hille Dot Williams Actor Merveille Lukeba Joe Appiah Actor Guy Hibbert Screenwriter, Executive Producer Brunson Green Producer Peter Heslop Producer Charlie Mason Producer Rick McCallum Producer Justin Moore-Lewy Producer Cameron McCracken Executive Producer Patrick Doyle Original Music Sam McCurdy Cinematographer Jonathan Amos Film Editing Sasha Robertson Casting Simon Bowles Production Design