Sojef was considered the leader of the Ba'ku. He had one son, Artim.
When his race was on the verge of self-annihilation, Sojef and a small group of his people escaped and found an isolated planet in the Briar Patch, where they decided to reject all technology in their everyday lives. Sojef was also, like others that came with him to Ba'ku, rejuvenated by the planet's metaphasic radiation. (Star Trek: Insurrection)
Sojef was played by Daniel Hugh Kelly.