My parents were so proud when I got a scholarship to go to theatre school - it was unheard of that a coal-miners son should go to drama school.

Life is a re-discovery.

My father was a coal hewer from Goldthorpe, a coal-mining village in South Yorkshire. He played for the Yorkshire second team as an opening fast bowler - to me he was a gorgeously heroic man. He helped form a union and closed down the Barnsley seam because it was seeping gas, and saved many, many lives.

I've become quite a serious explorer: I've been to Everest three times; I'm the oldest man to reach the North Pole; and I've just been to the lost world of Venezuela.

I had to leave school at 14 because my father got injured in the mines and I had to support my family. I was an undertakers assistant, then a plasterer, before doing my military service in the RAF. All the while, I was doing amateur dramatics and dreaming of getting a scholarship to the Bristol Old Vic Theatre School.

My parents taught me honesty, truth, compassion, kindness and how to care for people. Also, they encouraged me to take risks, to boldly go. They taught me that the greatest danger in life is not taking the adventure.

I've completed half of my space training at Space City in Moscow. I love adventure, and I've been training in a centrifuge and MiG Fighter with a view to going into space and being a spokesman for space exploration!