He is the captain of the New York City Police Department, and Gwen Stacy's father.
Captain Stacy is unaware that Gwen is Spider-Gwen and is using a fleet of androids to help him hunt down vigilantes. When Wolf Spider arrives at the police station, Captain Stacy tries to arrest him, but he is unsuccessful. After Wolf Spider is defeated, Captain Stacy has a talk with his daughter Gwen and realizes that she is Spider-Gwen.
Captain George Stacy was created by Stan Lee, John Romita, and Don Heck.