Alice St. Clair as Kate Middleton

Dan Amboyer as HRH Prince William of Wales

Jane Alexander as HM Queen Elizabeth II

Victor Garber as HRH Prince Charles

Lesley Harcourt as HRH Princess Diana

Jean Smart as HRH Camilla

Stanley Eldridge as HRH Prince Harry

Mark Penfold as HRH Prince Philip

Sebastian Beacon as Duncan

Lucy Phelps as Alicia

Keir Charles as Lewis Grisby

Vasilescu Valentin as James

Kazia Pelka as Carole Middleton

Michael Lumsden as Michael Middleton

Emily Head as Cynthia