(written from a Production point of view)
J.B. Williams is an actor who appeared as an alien pilgrim in the Star Trek: Enterprise first season episode "Cold Front". His costume from this episode was later sold off on the It's A Wrap! sale and auction on eBay.  Williams filmed his scenes on Friday 5 October 2001, Wednesday 10 October 2001, and Friday 12 October 2001 on Paramount Stage 8 and 18.