 Tony CurtisMyles Falworth | Myles Falworth |
 Janet LeighLady Anne of Mackworth | Lady Anne of Mackworth |
 David FarrarGilbert Blunt, Earl of Alban | Gilbert Blunt, Earl of Alban |
 Barbara RushMeg Falworth | Meg Falworth |
 Herbert MarshallWilliam, Earl of Mackworth | William, Earl of Mackworth |
 Torin ThatcherSir James | Sir James |
 Dan O'HerlihyPrince Hal of Wales | Prince Hal of Wales |
 Patrick O'NealWalter Blunt | Walter Blunt |
 Craig HillFrancis Gascoyne | Francis Gascoyne |
 Ian KeithKing Henry IV | King Henry IV |
 Doris LloydDame Ellen, Lady-in-Waiting | Dame Ellen, Lady-in-Waiting |
 Rhys WilliamsDiccon Bowman | Diccon Bowman |
 Leonard MudieFriar Edward | Friar Edward |
 Maurice MarsacCount de Vermois | Count de Vermois |
| LLeo BrittSir Robert | Sir Robert |
 Charles B. FitzsimonsGiles | Giles |
| GGary MontgomeryPeter | Peter |
| CClaud AllisterSir George | Sir George |
 Hamilton CampRoger Ingoldsby | Roger Ingoldsby |
 Harry CordingCaptain of King's Guards (uncredited) | Captain of King's Guards (uncredited) |
 Nicolas CosterHumphrey, Young Squire (uncredited) | Humphrey, Young Squire (uncredited) |
 Charles EvansLord Archbishop (uncredited) | Lord Archbishop (uncredited) |
| RRichard B. FitzgeraldSentry (uncredited) | Sentry (uncredited) |
 Lance FullerGuard (uncredited) | Guard (uncredited) |
 Brett HalseyYoung Squire / Apprentice Knight (uncredited) | Young Squire / Apprentice Knight (uncredited) |
 Chuck HamiltonCourt Observer (uncredited) | Court Observer (uncredited) |
| RRamsay HillSir Charles (uncredited) | Sir Charles (uncredited) |
 Robert F. HoyFirst Guard (uncredited) | First Guard (uncredited) |
 Nelson LeighArchbishop at Myles' Knighting (uncredited) | Archbishop at Myles' Knighting (uncredited) |
| JJames Logan(uncredited) | (uncredited) |
