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