"Three children track their lost piano with one note missing through London."
Heather Bennett
as Joan
Hennie Scott
as Tom
John Moulder-Brown
as Willie
Toke Townley
as Mr. Parker
Vivian Lacey
as Susie
Tommy Godfrey
as Sam
Edgar Driver
as Mr. Newbolt
Patricia Leslie
as Mrs. Harris
R.S.M. Brittain
as Commissionaire
Geoffrey Denton
as Floorwalker
Derek Prentice
as Stage manager
Michael Brandt
Director
Mary Cathcart Borer
Writer
Frank Wells
Henry Passmore
Producer
Hannah Russell
Music
Alan White
Director of Photography
John Glen
Editor
J. Elder Wills
Art Direction
Muriel Dickson
Wardrobe Designer
