Wonderful stuff indeed and the recordings are available from the BBC. To add to the cast list: Mitch, the Australian engineer, was variously played by Don Sharp, Bruce Beeby and David Williams in the three seaparate series. No, Charles Chilton didn't do Dan Dare; this written and illustrated by several several writers and authors although Frank Hampson was the most important, acting as both. Chad Varah - who founded the Samaritans was another author. Arthur C Clarke acted as consultant for the first episodes. Charles Chilton did write 'Jeff Arnold: Riders of the Range' who also appeared in the Eagle.
BBC - can we have Doctor Who and the Mekon please!