A towering Caldonian delegate who bids for the Barzan wormhole in The Price until Devinoni Ral quietly persuades him that running it would distract his people from research.
Leyor is a Caldonian, a member of a very tall species devoted to pure research. He appears in the third-season episode The Price, set in 2366, as his government's representative in the bidding for the Barzan wormhole held aboard the Enterprise.
He is courteous and scholarly, and his people's wealth makes him a serious competitor. The Chrysalian negotiator Devinoni Ral, who secretly uses his partly Betazoid empathy to read his rivals, takes Leyor aside and suggests that administering a trade route would be a burden to a people who dislike such work.
Leyor withdraws from the contest, which leaves the Federation, the Ferengi and Ral's clients as the remaining bidders.