| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bill Lenny | Crew | Editing | Editor |
Emilio Ardura | Crew | Art | Set Decoration |
Frank Cordell | Crew | Sound | Original Music Composer |
 Geoffrey Unsworth | Crew | Camera | Director of Photography |
Herbert Westbrook | Crew | Art | Art Direction |
Irving Allen | Crew | Production | Producer |
John Stoll | Crew | Art | Production Design |
 Ken Hughes | Crew | Writing | Screenplay, Director |
Maude Spector | Crew | Production | Casting |
Neville Smallwood | Crew | Costume & Make-Up | Makeup Artist |
 Nosher Powell | Crew | Crew | Stunts |
 Rocky Taylor | Crew | Crew | Stunts |
 Romo Gorrara | Crew | Crew | Stunts |
 Terence Plummer | Crew | Crew | Stunts |
 Terry Richards | Crew | Crew | Stunts |
Vittorio Nino Novarese | Crew | Costume & Make-Up | Costume Design |
Bill Warrington | Crew | Crew | Special Effects |
Gerry Crampton | Crew | Crew | Stunt Coordinator |
Bobbie Smith | Crew | Costume & Make-Up | Hairstylist |
Maurice Gillett | Crew | Lighting | Gaffer |
Ted Sturgis | Crew | Directing | Assistant Director |
Vicki Deason | Crew | Production | Production Secretary |
Andrew Donally | Crew | Production | Associate Producer |
 Alec Guinness | Cast | Actor | King Charles I |
 Anna Cropper | Cast | Actress | Ruth Carter |
Anthony Kemp | Cast | Henry Cromwell | |
Anthony May | Cast | Actor | Richard Cromwell |
 Charles Gray | Cast | Actor | The Earl of Essex |
 Dorothy Tutin | Cast | Actress | Queen Henrietta Maria |
 Douglas Wilmer | Cast | Actor | Sir Thomas Fairfax |
 Frank Finlay | Cast | Actor | John Carter |
 Geoffrey Keen | Cast | Actor | John Pym |
 George Merritt | Cast | Actor | William |
 Ian McCulloch | Cast | Actor | John Hampden |
 Jack Gwillim | Cast | Actor | General Byron |
John Forbes-Robertson | Cast | Actor | Colonel Harrison |
John Paul | Cast | Actor | General Digby |
 John Welsh | Cast | Actor | Bishop Juxon |
 Llewellyn Rees | Cast | Actor | Speaker |
 Michael Goodliffe | Cast | Actor | Solicitor General |
 Michael Jayston | Cast | Actor | Henry Ireton |
 Nigel Stock | Cast | Actor | Sir Edward Hyde |
 Patrick Holt | Cast | Actor | Captain Lundsford |
 Patrick Magee | Cast | Actor | Hugh Peters |
 Patrick Wymark | Cast | Actor | The Earl of Strafford |
Richard Cornish | Cast | Actor | Oliver Cromwell II |
 Richard Harris | Cast | Actor | Oliver Cromwell |
 Robert Morley | Cast | Actor | The Earl of Manchester |
 Robin Stewart | Cast | Actor | Charles - Prince of Wales |
Stacy Dorning | Cast | Actress | Mary Cromwell |
 Stratford Johns | Cast | Actor | President Bradshaw |
 Timothy Dalton | Cast | Actor | Prince Rupert |
 Zena Walker | Cast | Actress | Mrs. Cromwell |
 Basil Henson | Cast | Actor | Hacker |
Mel Churcher | Cast | Bridget Cromwell | |
 André van Gyseghem | Cast | Actor | Archbishop Rinuccini |
Josephine Gillick | Cast | Elizabeth Cromwell | |
| Person | Type | Job | Role(s) |
