Prince Charles' accession to the throne following the Queen's death. When he refuses to sign a controversial bill into law, political chaos ensues: a constitutional crisis, rioting on the streets and a tank in front of Buckingham Palace.
| Actor | Role |
|---|---|
 Tim Pigott-SmithCharles | Charles |
 Charlotte RileyKate Middleton | Kate Middleton |
 Oliver ChrisWilliam | William |
 Adam JamesPrime Minister Tristram Evans | Prime Minister Tristram Evans |
 Richard GouldingHarry | Harry |
 Max BennettCoottsey | Coottsey |
 Tamara LawranceJess | Jess |
 Margot LeicesterCamilla | Camilla |
 Tim McMullanJames Reiss | James Reiss |
 Priyanga BurfordMrs Stevens | Mrs Stevens |
 Katie BraybenDiana | Diana |
 John ShrapnelArchbishop of Canterbury | Archbishop of Canterbury |
 Parth ThakerarSpencer | Spencer |
 Grant CrookesMourner | Mourner |
 Philip GascoyneAdmiral (uncredited) | Admiral (uncredited) |