Donald Sinden
— Hugh Mander
Jeannie Carson
— Janet Macleod
Roland Culver
— Capt Waggett
Catherine Lacey
— Mrs Waggett
Noel Purcell
— Father James
Ian Hunter
— Air Commodore Watchorn
Duncan Macrae
— Duncan Ban
Gordon Jackson
— George Campbell
Jean Cadell
— Mrs Campbell
Alex Mackenzie
— Joseph Macleod
Carl Jaffe
— Dr Hamburger
Nicholas Phipps
— Andrew Wishart
Ronnie Corbett
— Drooby
James Copeland
— Kenny Mcleod
John Stevenson Lang
— Reverend Angus
Reginald Beckwith
— Mumford
Arthur Howard
— Meeching
John Laurie
— Capt. MacKechnie
Jack Short
— Roderick
Peter Copley
— Scientist
Jameson Clark
— Constable Macrae
Finlay Currie
— Narrator (uncredited)
Basil Dignam
— R.A.F. Officer (uncredited)