Sil
Sil was a Mentor, a race of amphibious capitalists, from the planet Thoros Beta. He was involved in various unethical business schemes during the late 24th century.
Biology
The Mentors had humanoid upper bodies and segmented tails. Their heads had fins on them. They were cold blooded and had both lungs and chest gills.
Appearances
Vengeance on Varos (TV)
Mindwarp (TV)
Mission to Magnus (Prose)
Mission to Magnus (Audio)
Antidote to Oblivion (Audio)