Real World article(written from a Production point of view)
Jay D. Schwartz played a miner in the Star Trek: Enterprise fourth season episode "Demons". He received no credit for his appearance.
Schwartz is Scott Bakula's publicist. He surprised Bakula on his shooting day in his outfit when he had a live chat for StarTrek.com.
Schwartz received thanks in the end credits of William Shatner's documentary The Captains.