D'Marr

From Memory Alpha, the free Star Trek reference.

You might also be looking for the Cardassian named Damar, or the Nyrian named Dammar.

D'Marr was an alien trader, captain of his own starship.

In 2151, he dined aboard the Enterprise with Captain Archer and T'Pol. Archer was interested in obtaining raw materials to fix the Enterprise. He was quite fond of coffee, and offered T'Pol some Triaxian silk. In exchange for coffee, D'Marr gave them the coordinates of the planet where he'd found the haunted Kantare vessel. He told them that no one had salvaged the ship because it was haunted. (ENT: "Oasis")

D'Marr was played by actor Tom Bergeron.