George Stacy is the police captain in NYC and the father of Peter Parker’s girlfriend Gwen Stacy. As a father he dislikes Peter, and as a cop he hates Spider-Man.
Which led to some awkward family dinners.
But he finds out Peter Parker is Spider-Man and they work together to fight The Lizard.
He even fights the Lizard alone so Peter could save the city in time.
Which cost him his life. He makes Peter promise to break up with Gwen so she wouldn’t die. Then he breaks his promise and she dies. You had one job Peter!