as Wing Commander Guy Gibson, V.C., D.S.O., D.F.C.

as Doctor B. N. Wallis, C.B.E., F.R.S.

as Mrs. Wallis

as Air Chief Marshal Sir Arthur Harris G.C.B., O.B.E., A.F.C.

as Captain Joseph (Mutt) Summers, C.B.E.

as Air Vice-Marshal The Hon. Ralph Cochrane G.B.E., K.C.B., A.F.C.

as Group Captain J. N. H. Whitworth, D.S.O., D.F.C.

as Doctor

as Sir David Pye, C.B., F.R.S.

as Doctor W.H. Glanville, C.B., C.B.E.

as Committee Member

as Committee Member

as Committee Member

as Official, National Physical Laboratory

as Official, Ministry of Aircraft Production

as Observer at Trials

as Observer at Trials

as R.A.F. Officer at Trials

as Farmer

as Group Signals Officer

as BBC Announcer

as Flt / Lt. R. D. Trevor-Roper, D.F.C., D.F.M.

as Flt / Lt. R. E. G. Hutchison, D.F.C.

as Flying / Off. F. M. Spafford, D.F.C., D.F.M.

as Flt / Lt. A. T. Taerum, D.F.C.

as Flt / Sgt. J. Pulford, D.F.M.

as Plt/Off. G. A. Deering, D.F.C.

as Squadron Leader H. M. Young, D.F.C.

as Squadron Leader H. E. Maudslay, D.F.C.

as Flight Lieutenant J. V. Hopgood, D.F.C.

as Flight Lieutenant W. Astell, D.F.C.

as Flight Lieutenant H. B. Martin, D.S.O., D.F.C., A.F.C.

as Flight Lieutenant D. J. H. Maltby, D.S.O., D.F.C.

as Flight Lieutenant D. J. Shannon, D.S.O., D.F.C.

as Flying Officer L. G. Knight, D.S.O.

as Flight Lieutenant R. C. Hay, D.F.C.

as Flight Lieutenant J. F. Leggo, D.F.C.

as Flight Sergeant G. E. Powell

as Wing Comdr. Gibson's Batman