Haynem

From Memory Alpha, the free Star Trek reference.

Crewman Haynem was a male crewmember aboard the Earth starship Enterprise.

In 2151, Haynem shared a meal with Crewman Bennett in the ship's mess hall. Doctor Phlox believed that Haynem and Bennett were preparing to mate, and asked Trip if he thought they would mind if he watched. (ENT: "Fight or Flight")

He was on duty and nod to Captain Archer moments before Archer left for shore leave on Risa. (ENT: "Two Days and Two Nights")

Ten years later, Haynem was still serving aboard Enterprise, as a medical technician. Haynem assisted Dr. Phlox in sickbay in bringing medical attention to Commander Tucker, who had been seriously injured by an explosion. (ENT: "These Are the Voyages...")

According to Larry Nemecek, this crewman was played by regular extra and stand-in Jef Ayres. The character was credited as "medical technician" in "These Are the Voyages..."