Nicholas organised the rescue and safe passage to Britain of 669 mostly Jewish children from German-occupied Czechoslovakia on the eve of the Second World War, in an operation later known as the Czech Kindertransport.
Michael surprised Nicholas at Winton House - an Abbeyfield care home for the elderly in Windsor.

Michael hid behind a newspaper in the reception area of a central London voice-over studio, until his given signal to surprise the Scottish actor - best known for his role as DCI Burke in ITV's police series, Taggart.
Among those paying tribute to Alex - the final actor to be honoured by This Is Your Life are presenter Jeremy Beadle and comedian Billy Connolly.