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