James DeHaviland
From Tardis Wiki, the free Doctor Who reference
James DeHaviland was a 2nd assistant director for Doctor Who and Torchwood. During the early Peter Capaldi era, he was the production manager of various episodes.
He also appeared as himself in The Five(ish) Doctors Reboot.
Note
Because most credits are typeset in all-caps, the spelling of this individual's name is somewhat ambiguous. However, an appearance on Doctor Who Confidential provided him with a chyron that clearly showed him to be "DeHaviland" rather than "Dehaviland", as is erroneously given at IMDB.