Mei-Ling Zhou, commonly referred to as Mei, is a climatologist and adventurer in the Overwatch universe. She hails from China and is known for her work in creating eco-friendly climate control solutions. Mei wields an endothermic blaster that can freeze enemies in place and create ice walls for strategic advantages. As a former member of the Overwatch team, she plays a crucial role in combatting the global threats posed by climate change and environmental hazards. Her cheerful demeanor and scientific expertise make her a beloved character in the series.