Darth Moren

"Moren was my finest student, but also quite . . . immure from what I'd look."

- Darth Tempus

Darth Moren was Darth Tempus second student long before and after Darth Extor. Tempus believe that Moren won't be very useful to the Sith from what he created it that Moren was indeed an immure from what he describe to that student.