Humanoid species. Their distinguishing physical characteristic is their mottled, greenish-tinted skin. The Suliban are originally from Sector 3641, but their homeworld became unhabitable around the Earth year of 1851, and most of them became nomadic.
One faction of Suliban are members of the Cabal, an organization of soldiers somehow involved with the Temporal Cold War. The Cabal takes its orders from the future, and in exchange, are able to alter their DNA and restructure their skeletons, giving them unique chameleon-like, shapeshifting abilities and enhanced senses.
The Cabal has caused trouble for some civilian Suliban who have assimilated into other cultures. For example, one group of peaceful Suliban was detained at a Tandaran internment camp.