Kantare were an humanoid species from the planet Kantare. They had scale-like violet colored markings on the sides of their head from the hairline to the temples, and at the base of the skull. The Kantare had a colony on the planet Kotara Barath as of 2129. They developed sophisticated holographic technology some time before this. (ENT: "Oasis")
The name of this species, and the quadrant that their homeworld was located in, was not identified in the episode, but instead comes from a reference found at StarTrek.com. The costumes for the Kantare also feature tags that state 'Kantare aliens'.