| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Elaine Morgan | Crew | Writing | Writer | |
 Ennio Morricone | Crew | Sound | Music | |
John Hefin | Crew | Directing | Director | |
 Angus MacKay | Cast | Actor | Sir Frances Hopwood | |
 Anthony Sharp | Cast | Actor | Lord Grey | |
 Dafydd Hywel | Cast | Actor | Gwyn Williams | |
David Lyn | Cast | Sam Evans | ||
David Markham | Cast | Actor | Herbert Henry Asquith | |
 David Troughton | Cast | Actor | AJ Sylvester | |
 Denys Hawthorne | Cast | Actor | John Dillon | |
Dermot Tuohy | Cast | John Redmond | ||
 Desmond Llewelyn | Cast | Actor | Lord Lansdowne | |
Dillwyn Owen | Cast | Dr David Edwards | ||
Donna Edwards | Cast | Mair Lloyd George | ||
 Ed Devereaux | Cast | Actor | Max Aitken | |
 Edward Judd | Cast | Actor | LNER Director | |
 Fulton Mackay | Cast | Actor | Bonar Law | |
 George Belbin | Cast | Actor | Lord Milner | |
 George Pravda | Cast | Actor | Professor Weizmann | |
Gillian Elisa | Cast | Anita George | ||
Glynn Williams | Cast | Returning Officer | ||
Hugh Morton | Cast | Actor | Reginald McKenna | |
 Hugh Thomas | Cast | Actor | Rufus Isaacs | |
Huw Ceredig | Cast | Actor | DA Thomas | |
 Jack May | Cast | Actor | Lord Runciman | |
John Boxer | Cast | Actor | Murray of Ellinbank | |
 Jonathan Elsom | Cast | Actor | Maurice Hankey | |
Kevin Flood | Cast | Actor | Sir Edward Carson | |
 Kika Markham | Cast | Actress | Frances Stevenson | |
 Lockwood West | Cast | Actor | King Edward VII | |
Marilyn Le Conte | Cast | Actress | Breton Maid | |
 Meredith Edwards | Cast | Actor | Richard Lloyd | |
Michael Anthony | Cast | Actor | Georges Clemenceau | |
 Michael Cochrane | Cast | Actor | Charles Masterman | |
Michael Forrest | Cast | Actor | Bob Smilie | |
 Morris Perry | Cast | Actor | Lord Birkenhead | |
Olwen Rees | Cast | Actress | Olwen Carey-Evans | |
 Philip Madoc | Cast | Actor | David Lloyd George | |
 Rachel Thomas | Cast | Actress | Mrs Richard Owen | |
 Ray Smith | Cast | Actor | Aneurin Bevan | |
Richard Beale | Cast | Actor | Lord Kitchener | |
 Robert Blythe | Cast | Actor | Bryn Roberts | |
 Roland Culver | Cast | Actor | William Ewart Gladstone | |
 Ruth Madoc | Cast | Actress | Lizzie Davies | |
 Sharon Morgan | Cast | Actress | Catherine Edwards | |
Stewart Jones | Cast | Mr Roberts | ||
 Sue Jones-Davies | Cast | Actress | Megan Lloyd George | |
Sylvester Morand | Cast | Actor | Col. Tweed | |
 Wendy Williams | Cast | Actress | Emmeline Pankhurst | |
 William Hootkins | Cast | Actor | Winston Churchill | |
 William Squire | Cast | Actor | Dr Clifford | |
 William Thomas | Cast | Actor | William George | |
John Gill | Cast | Actor | Lord Curzon | |
Jack Wynne-Williams | Cast | Actor | Richard Lloyd George | |
Michael Cunningham | Cast | GWR Director | ||
 Eric Longworth | Cast | Actor | Walter Long | |
David Garfield | Cast | Actor | Tom Bell | |
Terence Brook | Cast | Actor | King George V | |
John H. Francis | Cast | Actor | Gwilym Lloyd George | |
Ray Handy | Cast | Rev. Ellis | ||
Lisabeth Miles | Cast | Margaret Lloyd George | ||
Iestyn Garlick | Cast | Richard Lloyd George | ||
Elen Roger Jones | Cast | Sara | ||
Lisa Grug | Cast | Megan Lloyd George | ||
Ioan Meredith | Cast | Actor | JT Davies | |
Beryl Williams | Cast | Betsy George | ||
Owen Garmon | Cast | Herbert Lewis | ||
Dic Hughes | Cast | Richard Owen | ||
Iona Banks | Cast | Actress | Martha | |
Guto Roberts | Cast | Mr Evans | ||
Paul Curran | Cast | Actor | Stanley Baldwin | |
| Person | Type | Job | Role(s) | Episodes |
