James McCoy is a fictional character from the Star Trek franchise, known for his role as the chief medical officer aboard the starship USS Enterprise. He is often referred to as "Bones" and is portrayed by actor DeForest Kelley in the original series. McCoy is characterized by his strong moral compass, quick wit, and deep compassion for his patients. In addition to his medical expertise, McCoy frequently serves as a voice of reason among the crew, often clashing with Spock due to their differing approaches to logic and emotion. His character has appeared in various Star Trek films and series, contributing significantly to the franchise's legacy.