The Cloven have not appeared in the story campaign mode for Resistance: Fall of Man but are mentioned in found intelligence reports. However, they are revealed as an unlockable skin in the multiplayer mode. They are bald, pale-skinned humanoids in foreign military uniforms. In intelligence reports and on the official site, they are said to be maniacs who speak Russian, ritualistically mutilate themselves and their victims, and feed on the bodies of their own dead soldiers. They appear to be enemies of both the Chimera and the Euro-American forces, due to their hostility towards both. Despite this, they seem to be somehow connected to the Chimera, but in what way is unknown. In two of the intelligence reports found later on in the game it appears that the British started hunting for groups of Cloven. Also in one of these two it makes reference to a possible leader that may control the Cloven.
Information from Resistance's Map Pack 1 on the Official Website reports on a possible alliance between the Chimera and the Cloven. The Cloven were spotted ransacking Chimeran bases and encountering no resistance. It also reads in an intelligence report that the Cloven purposely lead the Chimera to York where the American soldiers would be landing, indicating York was a trap from the beginning. The equipment being taken by the Cloven is different from what has been seen in their possession so far. US forces speculate that the Cloven are stock piling Chimeran technology to be used against Allied forces. An encounter with the Cloven has shown that they now have weapons far stronger than anything witnessed from either side in combat. Whether the Cloven are in possession of advanced Chimeran technology or simply modifying existing Chimeran technology is unknown.