Dr. Rodney McKay is a fictional character from the science fiction television series Stargate Atlantis. He is portrayed as a brilliant but often arrogant astrophysicist and engineer, known for his expertise in advanced technology and alien artifacts. McKay plays a crucial role in the team exploring the lost city of Atlantis and often finds himself in high-stakes situations requiring quick thinking and problem-solving. Throughout the series, McKay's character develops relationships with other team members, including John Sheppard and Teyla Emmagan. His intelligence and resourcefulness are frequently highlighted, making him a key asset in their missions against various threats, including the Wraith and other adversaries.