Guest Stars Richard Cunningham as Lord Bute Neil Edmond as Earl Harcourt Peyvand Sadeghian as Coral Tunji Kasim as Adolphus Guy Henry as Doctor Monro Jack Michael Stacey as Prince Edward Seamus Dillane as Prince William Ryan Gage as Prince Regent Keir Charles as Lord Ledger Eliza Capel as Princess Sophia Connie Jenkins-Greig as Young Violet Joshua Riley as Prince Adolphus Florence Dobson as Princess Victoria Harvey Almond as Prince Ernest Helen Coathup as Young Princess Augusta Felix Brunger as Prince Frederick Gerrard McArthur as Dr. Hunter Ben Cura as Prince Augustus Sabina Arthur as Princess Elizabeth Katie Brayben as Vivian Ledger Paul Cawley as Benjamin West James Fleet as King George Jonathan Partridge as Archbishop Sophie Lamont as Bridgerton Maid