Guest Stars James Murray as Prince Andrew Sebastian Blunt as Prince Edward Ben Lloyd-Hughes as Mark Bolland Rufus Kampa as Young Prince William Blake Ritson as Andrew Gailey Jack Cunningham-Nuttall as Fergus Boyd Paul Sparkes as William's PPO Isaac Rouse as Ollie Chadwyck-Healey Tim Dutton as Michael Middleton Jack Myers as William's PPO - Eton Matilda Broadbridge as Pippa Middleton Charlie Beaven as Charlie Nelson Daniel Burt as James Middleton Ellie Shove as Kate's Friend - Imogen Lauren Koster as Kate's Friend - Hattie Oli Green as Finchey Liz Kettle as Tutor - Jocelyn Cooper Ella Bright as Young Kate Middleton Pete Ashmore as Highgrove Journalist 1 Yuyu Lee as Kate's Friend - Nicholas Matt Ingram-Jones as Glosse Posse 1 Lila Clements as Eton Journalist 3 Keir Barradell as Glosse Posse 2 Honor Swinton Byrne as Lola Airdale-Cavendish-Kincaid Georgia Livingstone as International Student 2 Raj Aich as Highgrove Journalist 4 Tom Hayes as Highgrove Journalist 2 Sara Hazemi as Waitress Ellouise Shakespeare-Hart as Eton Journalist 2 Andy Brady as Eton Journalist 1 Sorel Johnson as Eton Invigilator Aloreia Spencer as International Student 1 Eugenia Caruso as Tutor - Cristina Rossi Thea Collings as Highgrove Journalist 3 John MacKay as St. Andrews Librarian Jon Glover as Lecturer - Barlow