Nothing is known of Saul's early life. He is a resident of Subway Town and a the owner of Saul's Garage, working as a mechanic and providing vehicle repairs. He is also a member of the Resistance and uses his garage to conceal their hideout in Subway Town.
Events of RAGE
In 2135, Nicholas Raine arrives in the town of Wellspring and begins working with Elizabeth Cadence and the local Resistance. After freeing Resistance leader John Marshall from imprisonment within the ruins of Stone Mountain Correctional Facility, the Authority occupies Wellspring in search of both men. Together with Elizabeth, the three make their way to their hideout in Subway Town in order to continue their operations.
After arriving in Subway Town, Nicholas is introduced to Saul after leaving the Resistance hideout. While he operates as a mechanic, he also conceals the hideout's entrance and warns the Resistance when the Authority is nearby.
He has very few interactions with the Raine other than informing him about several events (e.g. the Authority or Redstone's actions or commenting on acquiring the Monarch) and providing two services in the Eastern Wasteland.