A top private school has been condemned for including Soviet spy Donald Maclean among a list of former pupils that it wants to honour with blue plaques. Gresham's School has applied to put up plaques celebrating a selection of notable alumni on its Old School House building in Holt, Norfolk. Those selected include The Crown actress Olivia Colman, Sir James Dyson, composer Benjamin Britten, poet WH Auden and hovercraft inventor Sir Christopher Cockerell. The school, which costs £36,000-a-year to attend for those boarding, also hopes to honour Donald Maclean, a British diplomat who leaked government secrets to the Soviet Union during World War II.