Jerik Blackthorne was one of two sons to Cadden Blackthorne and Renalla Starrider. He and Guan were birthed from cloning cylinders, just like their half-brothers Caius and Xanic. Like their half-brothers, they themselves were not clones of either Cadden or Renalla. Rather, they were test-tube birthed. Their aging was, as a result, accelerated until puberty, after which the process stabilized to normal levels. The reasons for this were unknown, and perhaps deliberate.