- Ian Dalrymplescreen play &
- Frank Weadscreen play &
- Elizabeth Hillscreen play
- Emlyn Williamsadditional dialogue
- A.J. Croninnovel "The Citadel"
- Penelope Dudley-Ward(as Penelope Dudley Ward)
- Francis L. Sullivan(as Francis Sullivan)
Rest of cast listed alphabetically
- Cameron Hall(uncredited)
- David Keir(uncredited)
- Eliot Makeham(uncredited)
- Elliott Mason(uncredited)
- Gus McNaughton(uncredited)
- Kynaston Reeves(uncredited)
- Harry Terry(uncredited)
- Ben Williams(uncredited)
- Victor Savilleproducer
- Hayes Goetzexecutive producer (uncredited)
- Louis Levymusical score
- Charles Williams(uncredited)
- Harry Stradling Sr.photography (as Harry Stradling)
- Charles Frendfilm editor
- Harold Boxallproduction manager
- Pen Tennysonassistant director
- C.C. Stevensrecordist
- A.W. Watkinsrecordist
- John Aldredsound assistant (uncredited)
- Peter Hopkinsoncamera assistant (uncredited)
- Gerry Massy-Collierassistant camera (uncredited)
- Cecil Milnerorchestrator (uncredited)
- Howard Dietzpress representative (uncredited)
Crew verified as complete
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