Robert Duncan McNeill was the most prolific director in Season 1, directing three episodes of which this is the first. He is best known for playing Lt. Tom Paris on Star Trek: Voyager (1995).
Harry (Alan Tudyk) states his people helped humans construct Stonehenge, which is a pre-historic site in southern England. Built around 3,000 B.C. the site consists of an outer ring of vertical stones about 13 feet high topped by vertical stones. Inside is a ring of smaller stones. Stonehenge is one of the most popular tourist attractions in England.