Kago-Darr's species

From Memory Alpha, the free Star Trek reference

Kago-Darr's species has a larger then average head, with mainly white hair, and some red and blue marking along the top. A ridge goes down the center bald-spot of their head, and there is a ridge-face on the sides of their eyes.

In early 2152, a member of this species was found in an Automated repair station, basically dead; the computer had been using his brain to run its systems. He'd been there for several years. (ENT: "Dead Stop")

Later, while searching for Menos in a bar in the Pernaia system, T'Pol encountered a member of his species at a table, and later behind her when she arrested Menos. In the shootout between Menos and Captain Jonathan Archer, Archer bumped into this tall alien and the tall guy said something in an unknown language to him. Archer left the alien alone and replied Couldn't agree more. (ENT: "The Seventh")

In early 2153, Kago-Darr, a bounty hunter that competed with Skalaar, tried to take Captain Jonathan Archer from him to hand to the Klingons. But they outmaneuvered him, and disabled his vessel. Later while repairing it, Enterprise contacted him for information on Skalaar's whereabouts, but all he knew was that he was probably half way to the Klingon border by then. (ENT: "Bounty")