Alden

From Memory Alpha, the free Star Trek reference.

Lieutenant Alden was 23rd century Starfleet officer attached to the sciences division aboard the USS Enterprise, under Captain James T. Kirk.

In 2265, Alden's duties aboard the Enterprise included operation of the starship's sensors and deflectors, tasks he performed at the communications officer's console. He was also a proficient technician, as evidenced by his assistance in the repairing of the helm following the ship's encounter with the galactic barrier.

Alden was a member of a landing party on planet Delta Vega, where he assisted in the refueling of the Enterprise's lithium supply. (TOS: "Where No Man Has Gone Before")

Alden was played by actor Lloyd Haynes. It is unknown what became of Alden following these events or whether or not he was the ship's communication officer, since his responsibilities did not appear to entail those of a comm officer.