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