Real world article
(written from a production point of view)
David Hillary Hughes (22 May 1901 – 5 February 1974; age 72) was an American actor with only four television and movie appearances. He portrayed Trefayne in the Star Trek: The Original Series first season episode "Errand of Mercy".
He filmed his scenes on Monday 30 January 1967 and Tuesday 31 January 1967 at Desilu Stage 9.
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