One of Our Dinosaurs Is Missing

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

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