- Anna Wilson-Jones - Lady Emma Portman
- Jordan Waller - Lord Alfred Paget
- Diana Rigg - Duchess of Buccleuch
- Bebe Cave - Wilhelmina Coke
- Catherine Flemming - Duchess of Kent
- Daniela Holtz - Baroness Louise Lehzen
- Leo Suter - Drummond
- Lily Travers - Duchess Sophie of Monmouth
- Kate Fleetwood - Princess Feodora
- Laurence Fox - Lord Palmerston
- John Sessions - Lord John Russell
- David Burnett - Joseph
- Gertrude Thoma - Hilde
- Anne Kidd - Crofter's Wife
- Andrew Neil - Crofter
- Emerald Fennell - Lady Lovelace
- Grainne Keenan - Mrs. Traill
- Alice Orr-Ewing - Lady Flora Hastings
- Robin McCallum - Lord Portman
- Richard Dixon - Lord Chancellor
- Guy Oliver-Watts - Sir James Hayter
- Dan Carey - Ratcatcher
- Paul Rhys - Sir John Conroy
- Nichola McAuliffe - Duchess of Cumberland
- Daisy Brown - Soprano
- Nicholas Agnew - Prince George
- Basienka Blake - Brothel Madam
- Carolin Stoltz - Gretchen
- Clare Wille - Lady Peel
- David Bamber - Duke of Sussex
- Terence Beesley - Buxton
- Scott Arthur - Peeler
- Daisy Goodwin - Duchess of Inverness
- Cornell John - Jonas Barrett
- Simon Paisley Day - Lord Chamberlain
- Bruce Mackinnon - Hannam
- James Wilby - Sir Piers Gifford
- Annabel Mullion - Lady Beatrice Gifford
- Ryan Pope - Engineer
- Peter Firth - Duke of Cumberland
- Michael Parkhouse - Hunter
- Michael Parkhouse - Lord Melbourne's Butler
- Basil Eidenbenz - Lohlein
- Harry McEntire - Edward Oxford
- Andrew Scarborough - Captain Childers
- Aoife Kennan - Abigail Owen
- John Hodgkinson - Police Inspector
- Jasper Jacob - Lord Chamberlain
- Peter Forbes - Craddock
- Richard Braine - Tailor
- Alexander Owen - Dr. Brydon
- Lisa Dudley - Queen's Nurse Maid
- Jo Stone-Fewings - Charles Babbage
- Ashley Zhangazha - Ira Aldridge
- David Shaw-Parker - Country Doctor
- Gavin Marshall - George Combe
- Rufus Sewell - Lord Melbourne
- Tommy Rodger - Boy Jones
- Howard Corlett - Fashionable Doctor
- Jacob Krichefski - Bascombe
- Nick Waring - James Planche
- Tom Price - Duke of Sutherland
- Andrew Bicknell - Duke of Coburg
- Samantha Colley - Eliza
- Erich Redman - German Priest
- Alexander Tol - Prince Ferdinand
- Hebe Beardsall - Princess Alda
- Bruno Wolkowitch - King Louis Philippe
- Henry Faber - Montpensier
- Olivia Popica - Catherine
- Antonia Desplat - Hortense
- Emily Renée - French Maid
- Martin Compston - Dr. Traill
- John Paul Connolly - Torrens
- Michael Maloney - Bishop
- Giles Taylor - Preacher
- Edward Bennett - Trevelyan
- Dan Fredenburgh - Chadwick
- Colm Gormley - Irish MP
- Denis Lawson - Duke of Atholl
- Murray Fraser - Ewan
- Lewis Mackinnon - William Beattie
- Philip Rowson - John Bright MP
- Roger May - George Bentink MP
- Peter Pacey - Stanley
- Robin Soans - Sir James Clark
- Andrew Havill - Dr. Pritchard
- Paul Gilmore - Preacher
- Margaret Clunie - Harriet, Duchess of Sutherland
- David Oakes - Duke of Coburg
- Vincent Regan - King Louis Philippe
- C.J. Beckford - Cuffay
- Cameron Jack - Police Inspector
- Kerr Logan - Patrick
- Simon Gregor - Lajos Kossuth
- Nigel Lindsay - Sir Robert Peel
- Sam Swainsbury - Dr. John Snow
- Roisin O'Neill - Mrs. Dolan
- Akbar Kurtha - Ambassador for the King of Oudh
- Alison Langer - Jenny Lind
- Laura Morgan - Florence Nightingale
- Robert Goodale - Whewell
- Julian Firth - Lord Powis
- Don Gallagher - Dr. Swinton
- Clive Hayward - Dr. Merton
- David Schaal - Brewer
- Lucy Briers - Mrs. Arbuthnot
- Edwin Thomas - Mr. Caine
- Fergal McElherron - Magee
- Christopher Dunne - Cardinal Ronan
- Alex Jennings - King Leopold
- Gary Oliver - Hudson
- Nicholas Audsley - Duke Charles of Monmouth
- Hilton McRae - Coombe
- David Newman - Henry Cole
- Ellen Evans - Princess Heidi
- Gaby French - Maid
- Peter Ivatts - Archbishop of Canterbury
- Kosha Engler - Hannah Landridge
- Pandora Clifford - Emily Palmerston
- Tristram Wymark - Henry Labouchere
- Stephanie Fayerman - Old Lady
- Daniel Donskoy - Grand Duke
- Hugh Simon - Colonel Sibthorpe
- Christopher Brand - Paxton
- Andrew Byron - King of Prussia
- John Tueart - Speaker of the House
- Lion-Russell Baumann - Prince Sigmund
- Peter Bowles - Duke of Wellington
- James Bradwell - Mandarin
- Gregory Mann - William Monmouth
- Robert Ryan - Great Exhibition Guest
- Robert Ryan - Palace Ball Guest
- Rebecca Eaton
- Kate McKerrell
- Damien Timmer
- Daisy Goodwin
Christopher Dunne interpreta a Cardinal Ronan en la serie.
Akbar Kurtha hace el papel de Ambassador for the King of Oudh.
Jenna Coleman interpreta a Queen Victoria en la serie.
Tom Hughes hace el papel de Prince Albert.
Nell Hudson hace el papel de Nancy Skerrett.
Ferdinand Kingsley interpreta a Francatelli en la serie.
Adrian Schiller interpreta a Penge en la serie.
Tommy Knight hace el papel de Archibald Brodie.
Anna Wilson-Jones hace el papel de Lady Emma Portman.
Jordan Waller interpreta a Lord Alfred Paget en la serie.
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