Matthew Bannister on

Robert Pirsig, author of the best selling book Zen and the Art of Motorcycle Maintenance.

Shobha Nehru, the Hungarian woman who married into India's most powerful political dynasty - and used her position to confront Prime Minister Indira Ghandi about human rights abuses.

Michael Ballhaus, the cinematographer who worked closely with Martin Scorsese.

Leo Baxendale, the cartoonist and publisher who created the Bash Street Kids and Minnie the Minx.

And Bruce Langhorne, the guitarist on some of Bob Dylan's best known songs.

Producer: Neil George.