Patrick Kaplan was a genetically-engineered Human. Patrick's parents took him as a child to undergo an illegal procedure called accelerated critical neural pathway formation which dramatically increased his intelligence beyond what Humans would call genius level. However, the procedure also left him with a child-like personality. In 2374, when news of Julian Bashir's genetic enhancements became public, his primary care physician, Dr. Karen Loews took him, along with Jack Bennett, Lauren Tyler, and Sarina Douglas to Deep Space 9.