Matthew Bannister on
Professor Marvin Minsky - the computer scientist who carried out pioneering work on artificial intelligence.
Margaret Forster who wrote novels like Georgy Girl and acclaimed biographies including a life of Daphne Du Maurier.
Peter Powell who invented the stunt kite and turned it into a global business, before it all came crashing down.
Sir Brian Tovey who was director of the Government Communications Head Quarters - GCHQ - when the government tried to introduce a ban on trade union membership.
And Joe Alaskey, the voice artist behind Daffy Duck and Bugs Bunny.
