Ron Craddock
From Tardis Wiki, the free Doctor Who reference
Ron Craddock was the uncredited production assistant for the Doctor Who television story The Aztecs. (INFO: The Aztecs)
He later became producer of popular police series Z-Cars between 1969-1978. Elisabeth Sladen had appeared in two episodes, and Craddock recommended her for the role of Sarah Jane Smith in 1973[1].