I don't know the name of the Narrator on the clip so kindly provided by Eagle...
That would be the late Dougie Godfrey. He was a foreman on the Vulcan production line at Woodford. He was also the "chairman" of the 603 Club at Woodford, responsible for taking care of XM603. His death was a factor in 603's decline over the last 5 or 6 years I have read somewhere...