- Charles Woodscreenplay
- Cecil Woodham-Smithadditional source material "The Reason Why" (as Cecil Woodham Smith)
- John Osborne(uncredited)
- John J. Carney(as John Carney)
- Howard Marion-Crawford(as Howard Marion Crawford)
- Christopher Cunningham(as Chris Cunningham)
- Mick Dillon(as Michael Dillon)
Rest of cast listed alphabetically
- Stenson Falke(uncredited)
- Harry Fielder(uncredited)
- Bernard Foreman(uncredited)
- Laurence Harvey(uncredited)
- Juba Kennerley(uncredited)
- Cyril Kent(uncredited)
- James Payne(uncredited)
- Dido Plumb(uncredited)
- Philip Stewart(uncredited)
- Charles Wood(uncredited)
- Kate Wood(uncredited)
- Bernard Cooteassociate producer
- Neil Hartleyproducer
- David Watkindirector of photography
- David Walkercostumes
- Linda DeVettamake-up (uncredited)
- Roy Stevensproduction supervisor
- Julian Mackintoshproduction manager (uncredited)
- Michael Stevensonunit manager (uncredited)
- Christian de Chalongesecond unit director (as Christian De Chalonge)
- Clive Reedassistant director
- Dusty Symondssecond assistant director (uncredited)
- John Patersonconstruction
- Julia Trevelyan Omanassociate art director
- Ian Whittakerset dresser
- Arthur Dayassistant construction manager (uncredited)
- Richard Rambautdraughtsman (uncredited)
- Jeff Woodbridgecarpenter (uncredited)
- Peter Handfordsound effects
- Simon Kayesound
- Kevin Connorsound editor (uncredited)
- Gerry Humphreysre-recording mixer (uncredited)
- Robin O'Donoghueassistant dubbing mixer (uncredited)
- R.A. MacDonaldspecial effects (as Robert A. Macdonald)
- Brian Warnerspecial effects
- Peter Hutchinsonspecial effects assistant (uncredited)
- A. Paul Pollardspecial effects (uncredited)
- Mick Dillonstunt double horse rider: David Hemmings (uncredited)
- Richard Graydonstunt coordinator (uncredited)
- John Landisstunt performer (uncredited)
- Nosher Powellstunts (uncredited)
- Alan McCabecamera operator
- Peter Suschitzkysecond unit camera
- Robin Browneclapper loader (uncredited)
- Geoff Gloverfocus puller: second unit (uncredited)
- Bernie Prenticegaffer (uncredited)
- Ted Geraldanimation unit
- Roy Jacksonanimation unit
- Errol Le Cainanimation unit
- Pat Savageanimation unit (as Patrick Savage)
- Richard Williamsanimation
- Simon Petersanimation editor (uncredited)
- Brenda Dabbswardrobe assistant (uncredited)
- Tony Teigermilitary costumes (uncredited)
- Kevin Brownlowsupervising editor
- Sarah Ellisassistant editor (uncredited)
- Michael Moorescomposer: additional music (uncredited)
- Angela Allencontinuity
- Lynne Courtemanchenurse (uncredited)
- Arthur Wicksdressing props (uncredited)
- Paul Pinespublicist
- Geoff Freemanunit publicist (uncredited)
- Lila De Nobiliperiod and colour advisor
- John Mollohistorical research
- Bob Simmonsaction arrangements
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