Thorold Dickinson Director, Writer Mervyn Johns No 23: Mr Davis Actor John Chandos No 16: his contact Actor Nova Pilbeam Beppie Leemans Actor Reginald Tate Maj. Richards Actor Stephen Murray Mr Barratt Actor Geoffrey Hibbert Pvt. John Actor Basil Bartlett Writer John Dighton Writer Angus MacPhail Writer Michael Balcon Producer