Osborne was educated at Gresham's School, Holt, then at Robert Louis Stevenson School, Pebble Beach, California, and St John's College, Cambridge, where he studied law and was Vice President of the Cambridge Footlights, and finally at the Middle Temple, from where he was called to the bar.
[1][2] Shortly after beginning his career as a barrister, Osborne moved to Hollywood with a friend, William Davies, and began to write film scripts.
[1] Osborne became a member of the Writers Guild of America West and has written for more than sixty films, including GoldenEye (1995).
[6] He returned from California to marry Hayward, and they later moved from London to Glandford, Norfolk, with Osborne taking up writing children’s fiction.
[3] His recreations include cold water swimming, Lego, and driving a beach buggy.