Oyuncular
Peter Arne
Staff Officer to Air-Vice Marshal Cochrane (uncredited)
Hugh Moxey
Observer at Trials
Robert Shaw
Flt / Sgt. J. Pulford, D.F.M.
David Morrell
Flight Lieutenant W. Astell, D.F.C.
Bill Kerr
Flight Lieutenant H. B. Martin, D.S.O., D.F.C., A.F.C.
Tim Turner
Flight Lieutenant J. F. Leggo, D.F.C.
Harold Goodwin
Wing Comdr. Gibson's Batman
Michael Redgrave
Doctor B. N. Wallis, C.B.E., F.R.S.
Hugh Manning
Official, Ministry of Aircraft Production
Peter Assinder
Plt/Off. G. A. Deering, D.F.C.
George Baker
Flight Lieutenant D. J. H. Maltby, D.S.O., D.F.C.
Derek Farr
Group Captain J. N. H. Whitworth, D.S.O., D.F.C.
Brian Nissen
Flt / Lt. A. T. Taerum, D.F.C.
Richard Coleman
RAF Officer (uncredited)
Gerald Harper
RAF Officer (uncredited)
Raymond Huntley
Official, National Physical Laboratory
Edwin Styles
Observer at Trials
Lloyd Lamble
Collins (uncredited)
Edwin Richfield
RAF Officer (uncredited)
Richard Todd
Wing Commander Guy Gibson, V.C., D.S.O., D.F.C.
Ernest Clark
Air Vice-Marshal The Hon. Ralph Cochrane G.B.E., K.C.B., A.F.C.
Charles Carson
Doctor
Laurence Naismith
Farmer
Philip Latham
Flight Sergeant (uncredited)
Ursula Jeans
Mrs. Wallis
Frederick Leister
Committee Member
Richard Thorp
Squadron Leader H. E. Maudslay, D.F.C.
Denys Graham
Flying Officer L. G. Knight, D.S.O.
Patrick McGoohan
Guard at Door (uncredited)
Peter Diamond
Tail Gunner (uncredited)
Basil Sydney
Air Chief Marshal Sir Arthur Harris G.C.B., O.B.E., A.F.C.
Patrick Barr
Captain Joseph (Mutt) Summers, C.B.E.
Colin Tapley
Doctor W.H. Glanville, C.B., C.B.E.
Nigel Stock
Flying / Off. F. M. Spafford, D.F.C., D.F.M.
Richard Leech
Squadron Leader H. M. Young, D.F.C.
Arthur Howard
RAF Pay Clerk in NAAFI (uncredited)
Stanley Van Beers
Sir David Pye, C.B., F.R.S.
John Fraser
Flight Lieutenant J. V. Hopgood, D.F.C.
Ewen Solon
Flight Sergeant G. E. Powell