Sekkoth

This Skonnan pilot was charged with delivering what was to be the final tribute to the Nimon. Unlike his co-pilot, he did not have faith in their ageing ship's computer. He eventually relented to his colleague's insistence, a decision which led to an overload which caused the older pilot's death. (TV: The Horns of Nimon)

According to the novelisation, PROSE: Doctor Who and the Horns of Nimon, the pilot's name was Sekkoth.