- Peter Sellers
- The Reverend John Smallwood
- Cecil Parker
- Archdeacon Aspinall
- Isabel Jeans
- Lady Despard
- Ian Carmichael
- The Other Smallwood
- Bernard Miles
- Simpson
- Brock Peters
- Matthew
- Eric Sykes
- Harry Smith
- Irene Handl
- Rene Smith
- Miriam Karlin
- Winnie Smith
- Joan Miller
- Mrs. Smith-Gould
- Miles Malleson
- Rockeby
- Eric Barker
- Bank Manager
- William Hartnell
- Major Fowler
- Roy Kinnear
- Fred Smith
- Joan Hickson
- Housewife
- Kenneth Griffith
- Rev. Owen Thomas
- Mark Eden
- Sir Geoffrey Despard
- John Comer
- Butcher
- Basil Dignam
- Prisoner Governor
- Franklyn Engelman
- TV Commentator
- Colin Gordon
- Prime Minister
- Geoffrey Hibbert
- Council Official
- Joan Heal
- Disgruntled Housewife
- Ludovic Kennedy
- Ludovic Kennedy
- Marjie Lawrence
- Quarrelling Housewife
- Harry Locke
- Shop Steward
- Henry B. Longhurst
- Deaf Gentleman
- Joan Matheson
- Cast Member
- Malcolm Muggeridge
- Cleric
- Derek Nimmo
- Director-General's Assistant
- Conrad Phillips
- P.R.O.
- Nicholas Phipps
- Director-General
- Cardew Robinson
- Tramp
- Gerald Sim
- Self-Service Store Manager
- Olive Sloane
- Quarreling Housewife
- Marianne Stone
- Miss Palmer
- Elsie Wagstaff
- Lady on Parish Church Council
- Thorley Walters
- Tranquilax Executive
- Ian Wilson
- Salvation Army Major
- George Woodbridge
- Bishop
- Josephine Woodford
- Doris Smith
- Ronald Adam
- Cabinet Minister #1
- Jack Armstrong
- Townsman
- Jack Arrow
- Rotary Club Member / Townsman (uncredited)
- Peter Avella
- Townsman
- Roy Beck
- Reporter
- Joe Beckett
- Launch Site Worker
- Arnold Bell
- Stockbroker Renshaw
- Barbara Bennett
- Townswoman
- Paul Beradi
- Radio India Reporter
- Rodney Bewes
- Milkfloat Driver
- John Boxer
- Stockbroker
- Eddie Boyce
- Townsman
- Jim Brady
- Protester with Banner
- Tim Brinton
- TV Commentator
- Sydney Bromley
- Tramp
- Robin Burns
- Townsman
- Jack Carter
- Launch Site Worker
- Alf Casha
- Townsman
- Tony Castleton
- Townsman
- Rodney Brian Clarke
- Townsmen in Churchyard
- Peggy Ann Clifford
- Bit Part in Crowd Scene
- Douglas Cooper
- Bit Part
- George Lane Cooper
- Banner Holder
- Maxwell Craig
- Radio Reporter
- George Curtis
- Constable
- Fred Davis
- Policeman
- Reggie de Beer
- Townsman
- Ed Devereaux
- Communications Officer
- Peter Evans
- Townsman
- Joe Farrar
- Policeman
- John Glyn-Jones
- Professor
- Nora Gordon
- Old Lady in Garden
- Ursula Granville
- Townswoman
- Hilda Green
- Townswoman
- Robert Gregory
- Sir Clive Harvey-Jenkins
- Fred Griffiths
- Angry Man in Crowd Scene
- Aidan Harrington
- Radio Reporter
- John Harvey
- Wilson
- Mike Havord
- Press Photographer
- Drewe Henley
- Doris' Boy Friend
- Walter Henry
- Cinema Doorman
- Laurence Hepworth
- Townsman
- Rose Hill
- Woman
- George Hilsdon
- Police Constable
- George Holdcroft
- Townsman
- Lindsay Hooper
- Man Watching TV
- John Howard
- Reporter
- Arthur Howell
- Townsman
- Pat Judge
- Tranquilax Worker
- John Junkin
- Reporter at Space Launch Site
- Barry Keegan
- Angry Man in Crowd Scene
- Frederick Kelsey
- Townsman
- Margaret Lacey
- Molly
- Anthony Lang
- Salvation Army
- Pat Lewis
- Townswoman
- Dickey Luck
- Townsman
- Ned Lynch
- Rotary Club Member
- Edward Malin
- Man Trying to Buy Chicken
- Jack Mandeville
- Townsman
- John Louis Mansi
- Man Buying Groceries
- Steve Marriott
- Jack
- Jack McNaughton
- Dairy manager
- Richard McNeff
- Police Inspector
- Billy Milton
- Fellowes
- John More
- Rotary Club Member
- Lola Morice
- Salvation Army Girl
- Arthur Mullard
- Cast Member
- Cecil Paul
- Rotary Club Member
- Howard Pays
- Lt. Cliff Street
- Joe Phelps
- Policeman
- Harry Phipps
- Tramp
- Dido Plumb
- Tramp
- Guy Kingsley Poynter
- American Commentator
- John Preston
- Townsman
- Edith Raye
- Townswoman
- Bill Reed
- Townsman
- Ernie Rice
- Townsman
- Bill Rooney
- Townsman
- Pat Ryan
- Townsman
- Frank Schock
- Townsman
- Roy Seely
- Townsman
- Jack Sharp
- Townsman
- Frank Sieman
- Baptist in Food Queue
- Jeff Silk
- Policeman
- Miles Silverton
- Townsman
- Bert Simms
- Townsman
- Keith Smith
- Leslie Hughes
- Paddy Smith
- Sound Man
- Philip Stewart
- Diner
- Fred Stroud
- Radio Reporter
- Reg Thomason
- Rocket Technician
- John Timberlake
- Butcher
- Rita Tobin-Weske
- Lady at Church Door
- Graham Tonbridge
- Townsman
- Robert Vossler
- Constable / Waiter (uncredited)
- Russell Waters
- Bit Part in Cabinet Office
- Del Watson
- Cameraman
- John Wilder
- Policeman
- Fred Wood
- Protester
- Gilbert Wynne
- Engineer
