Elías Cabrera was a childhood associate of Rendir Throam. He too lived on Level 230 of the City of Peru, a megastructure located on Earth. He was the younger brother of Josué, and the son of Father Cabrera.
In the early 3700s Elías was one of the various children associated with Rendir's circle of friends. He frequently took part in "Frontline", a team-based game in which the children acted out Perseus conflict events they had seen in the newsfeeds.
Elías's elder brother Josué was deeply dismissive towards him, calling him stupid openly and speaking to him in a scornful manner. Although it was obvious that the pair's mother had issued an injunction to him about how he was to treat his younger sibling, Josué used blackmail to ensure that Elías would not report his bullying. Elías was somewhat shy and withdrawn as a result, and plainly lacked confidence (→LOTD).
As a result of Josué's narcissism, in 3720 ELC Elías was injured while the group were re-enacting events from the invasion of a Viskr-held Perseus arm planet called Najila. Josué contributed to that event by tussling with Rendir Throam, and the pair knocked Elías off balance. This led directly to him falling some distance and suffering an injury (→LOTD).