Hayley Mills
— Jenny Piper
Hywel Bennett
— Arthur Fitton
John Mills
— Ezra Fitton
Marjorie Rhodes
— Lucy Fitton
Avril Angers
— Liz Piper
John Comer
— Leslie Piper
Wilfred Pickles
— Uncle Fred
Murray Head
— Geoffrey Fitton
Liz Fraser
— Molly Thompson
Barry Foster
— Joe Thompson
Andy Bradford
— Eddie
Thorley Walters
— Vicar
Colin Gordon
— Mr Hutton, Travel Agent
Robin Parkinson
— Mr Phillips, Travel Agent's Assistant
Lesley Daine
— Dora
Ruth Trouncer
— Marriage Guidance Counsellor
Harry Locke
— Mr Stubbs, Housing Officer
Maureen O'Reilly
— Miss Hunt, Housing Officer's Secretary
Michael Cadman
— Len
Hazel Bainbridge
— Mrs Bell
Diana Coupland
— Mrs Rose
Fanny Carby
— Mrs Stone
Helen Booth
— Mrs Lee
Margaret Lacey
— Mrs Harris
Rosalind Elliot
— Marriage Guidance Counsellor's Secretary (uncredited)
Windsor Davies
— Man in Crowd Outside Travel Agents (uncredited)
Kathy Staff
— Neighbour (uncredited)
Keith Marsh
— Fish and Chip Van Proprietor (uncredited)