The Thul are a slug-like race that served as minions to the Il'Ri'Kamm Hive Mind, inventing the original OtherSpace Drive on the Hivers' behalf. First encountered by Sanctuary in Hiverspace, these aliens abducted refugees from the colony vessel to conduct experiments. When Sanctuary was seeking a means to return to Normalspace, it sent several expeditions in search of the Thul. Ultimately, it was on Comorro Station that members of the colony vessel found the means to track down the leader of the Thul, Ancient Shog.