One of Our Dinosaurs Is Missing

Hugh Burden as Haines Max Wall as Juggler Joss Ackland as B.J. Spence John Bardon as Bookmaker Jane Lapotaire as Miss Prescott Helen Hayes as Hettie John Laurie as Jock Aimée Delamain as Millicent Lucy Griffiths as Amelia Michael Elwyn as Haycock Joan Hickson as Mrs Gibbons Joan Sims as Emily Natasha Pyne as Susan Frank Williams as Dr. Freemo Angus Lennie as Hamish Richard Pearson as Sir Geoffrey Wensley Pithey as Bromley Bernard Bresslaw as Fan Choy Clive Revill as Quon Peter Madden as Sanders Deryck Guyler as Harris Amanda Barrie as Mrs BJ Spence Roy Kinnear as Superintendent Grubbs Erik Chitty as Museum Guard Derek Nimmo as Lord Southmere Percy Herbert as Mr Gibbons Arthur Howard as Thumley Kathleen Byron as Colonel's Wife Molly Weir as Scots Nanny Peter Ustinov as Prince John/ Hnup Wan ''Hunp'' Jon Pertwee as Colonel Anthony Sharp as Home Secretary

Bill Walsh Writer, Producer Peter Best Sound Editor Robert Stevenson Director