The Daliwakans were a humanoid species native to the Alpha or Beta Quadrant.
The Daliwakans were mainly Human in appearance except for a row of ridges down the center of their forehead, and pronounced skin above the eyebrows. Daliwakans could reproduce with Humans.
Presumably, "The Gigolo's" features are a combination of Human and Daliwakan facial features, so Daliwakan appearance would probably be more pronounced than his.
There was a hologram (presumably of a real person) that was half Daliwakan on his mother's side, and his father was a Human of French descent. He was in Tom Paris' holodeck program depicting Chez Sandríne. (VOY: "The Cloud", "Lifesigns")