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