- Ralph Richardson
- Prof. Heatherville
- Raymond Huntley
- Prof. Laxton-Jones
- John Laurie
- Dr. McVitie
- Ernest Jay
- Dr. Dainty
- David Tomlinson
- Mr. Watlington
- Finlay Currie
- Sir Duncan Wilson Wills
- Norman Webb
- Dr. Wainwright
- Michael Hordern
- Lt. Cmdr. Lowther
- Pamela Matthews
- Mrs. Watlington
- Joan Haythorne
- Mrs. Laxton-Jones
- Joan Young
- Mrs. McVitie
- Ann Wilton
- Mrs. Dainty
- Richard Attenborough
- Jack Arnold
- David Hutcheson
- Squadron Leader Sowerby
- Patrick Waddington
- Group Capt. Aspinall
- Cyril Smith
- Flight Sgt. Cox
- James Hayter
- Warrant Officer
- D. Bradley Smith
- Air Marshal Cotter
- Robin Bailey
- Wives' Escort Officer
- Hugh Dempster
- Sqdn. Ldr. Slatter
- Kenneth Milne-Buckley
- Sqdn. Ldr. Buckley
- Paul Carpenter
- Flt. Lt. Argylle
- Anthony Dawson
- Flt. Lt. Norton
- Robert Long
- Flying Officer Davies
- Richard Mantell
- Air Vice-Marshal
- Murray Matheson
- Wing Cdr. Allen
- Anthony Wyckham
- Flg. Off. Ogden
- Peggy Evans
- Daphne Adams
- Ingrid Forrest
- Penelope Birkenshaw
- Geraldine Keyes
- Phyllis Hammond
- Vida Hope
- WAAF Flight Sergeant
- Sonia Elverson
- WAAF Teller
- Robert Wyndham
- Major
- Andrew Blackett
- Captain
- Bill Owen
- Paratroop Sergeant
- Tony Arpino
- 1st Commando
- Peter March
- 2nd Commando
- Bob Elson
- 3rd Commando
- Roger Keyes
- 4th Commando
- Trevening Hill
- 5th Commando
- Edward Hodge
- 6th Commando
- Joseph Almas
- Dr. Klemmerhahn
- Arthur Rieck
- Lt. Hense
- Ernst Urbach
- 1st Sentry
- Karl Morel
- 2nd Sentry
- Marjorie Rhodes
- Mrs. Arnold
- Edward Lexy
- Sir Desmond Prosser
- Hugh Pryse
- Sir Nicholas Hathaway
- O.B. Clarence
- Old Retainer
- Aubrey Mallalieu
- 1st Club Member
- Desmond Roberts
- 2nd Club Member
- Guy Belmore
- 3rd Club Member
- Alvar Liddell
- BBC Announcer
- Dagenham Girl Pipers
- Selves
- Kenneth More
- Bomb Aimer
- Jim Morris
- Officer at Dance
- Arthur Mullard
- (uncredited)
- Ian Selby
- Man at Dance
