| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Charlotte Walter | Crew | Costume & Make-Up | Costume Design | 4 |
 Chris Gill | Crew | Editing | Editor | 4 |
Hannah Moseley | Crew | Art | Supervising Art Director | 4 |
Jayne Buxton | Crew | Costume & Make-Up | Makeup & Hair | 4 |
 John Lunn | Crew | Sound | Original Music Composer | 4 |
Julie Dartnell | Crew | Costume & Make-Up | Makeup & Hair | 4 |
 Karen Lindsay-Stewart | Crew | Production | Casting | 4 |
Laura Mackie | Crew | Production | Executive Producer | 4 |
Lisa Westcott | Crew | Costume & Make-Up | Makeup & Hair | 4 |
Mark Shivas | Crew | Production | Producer | 4 |
Mike Gunn | Crew | Art | Production Design | 4 |
 Peter Moffat | Crew | Writing | Writer, Creator | 4 |
Polly Fehily | Crew | Costume & Make-Up | Makeup & Hair | 4 |
Sally Woodward Gentle | Crew | Production | Executive Producer | 4 |
 Tim Fywell | Crew | Directing | Director | 4 |
Tina Jones | Crew | Art | Set Decoration | 4 |
Bea Millas | Crew | Costume & Make-Up | Makeup Artist | 4 |
David Higgs | Crew | Camera | Director of Photography | 4 |
Emer O'Sullivan | Crew | Art | Art Direction | 4 |
 Gareth Neame | Crew | Production | Executive Producer | 4 |
Alison Gee | Crew | Production | Co-Producer | 4 |
Adam Blackwood | Cast | Actor | Oliver Lester | 1 |
 Anna-Louise Plowman | Cast | Actress | Melinda Maclean | 2 |
 Anthony Andrews | Cast | Actor | King George VI | 1 |
 Colin Higgins | Cast | Actor | Porter | 2 |
 Imelda Staunton | Cast | Actress | The Queen | 2 |
 James Fox | Cast | Actor | Lord Halifax | 1 |
 Jenna Harrison | Cast | Actress | Miriam Block | 1 |
 Julian Firth | Cast | Actor | Prince of Wales | 1 |
 Leon Lissek | Cast | Actor | Prof. Bruno Klein | 1 |
 Lucy Russell | Cast | Actress | Aileen Furse | 1 |
Michael Parkhouse | Cast | Actor | First BBC Man | 1 |
 Miles Richardson | Cast | Actor | Second BBC Man | 1 |
 Peter Eyre | Cast | Actor | Arthur Quigley | 1 |
 Ronald Pickup | Cast | Actor | Colonel Winter | 2 |
 Rupert Penry-Jones | Cast | Actor | Donald Maclean | 4 |
 Samuel West | Cast | Actor | Anthony Blunt | 4 |
 Simon Jones | Cast | Actor | Sir Michael Boal | 1 |
 Stuart Laing | Cast | Actor | Jack Hewit | 3 |
 Toby Stephens | Cast | Actor | Kim Philby | 4 |
 Tom Hollander | Cast | Actor | Guy Burgess | 4 |
 Benedict Cumberbatch | Cast | Actor | Edward Hand | 1 |
 Lisa Dillon | Cast | Litzi Friedman | 1 | |
 Nicholas Burns | Cast | Actor | Rightwing Student | 1 |
 Patrick Kennedy | Cast | Actor | Julian Bell | 2 |
 Simon Woods | Cast | Actor | Charlie Givens | 1 |
 Marcel Iureș | Cast | Actor | Otto | 2 |
Daniel Hart | Cast | Michael Frank | 1 | |
| Person | Type | Job | Role(s) | Episodes |
