School for Secrets

Ralph Richardson Prof. Heatherville Raymond Huntley Prof. Laxton-Jones John Laurie Dr. McVitie Ernest Jay Dr. Dainty David Tomlinson Mr. Watlington Finlay Currie Sir Duncan Wills Norman Webb Dr. Wainwright Michael Hordern Lt. Cmdr. Lowther Pamela Matthews Mrs. Watlington Joan Haythorne Mrs. Laxton-Jones Joan Young Mrs. McVitie Ann Wilton Mrs. Dainty Richard Attenborough Jack Arnold David Hutcheson Squadron Leader Sowerby