Cast
Finlay Currie
Sir Duncan Wills
Vida Hope
WAAF Flight Sergeant
Arthur Mullard
(uncredited)
Richard Attenborough
Jack Arnold
Patrick Waddington
Group Capt. Aspinall
Aubrey Mallalieu
1st Club Member
Paul Carpenter
Flt. Lt. Argylle
Murray Matheson
Wing Cdr. Allen
Hugh Pryse
Sir Nicholas Hathaway
Ralph Richardson
Prof. Heatherville
Michael Hordern
Lt. Cmdr. Lowther
Marjorie Rhodes
Mrs. Arnold
O.B. Clarence
Old Retainer
Desmond Roberts
2nd Club Member
Raymond Huntley
Prof. Laxton-Jones
Peggy Evans
Daphne Adams
Kenneth More
Bomb Aimer (uncredited)
Cyril Smith
Flight Sgt. Cox
Robert Wyndham
Major
Bill Owen
Paratroop Sergeant (as Bill Rowbotham)
John Laurie
Dr. McVitie
Pamela Matthews
Mrs. Watlington
Robin Bailey
Wives' Escort Officer
David Tomlinson
Mr. Watlington
Joan Young
Mrs. McVitie
David Hutcheson
Squadron Leader Sowerby
James Hayter
Warrant Officer
Anthony Dawson
Flt. Lt. Norton