Stanley Snyder is a major antagonist in Dr. STONE, serving as one of the most formidable and skilled soldiers in the series. A loyal operative of Dr. Xeno, he is a highly trained marksman, strategist, and combat expert with exceptional tactical instincts. Stanley plays a key role in the conflict between Science Kingdom and Xeno’s American faction, acting as a relentless military threat. His calm, professional demeanor and deadly precision make him one of the series’ most dangerous human opponents.