Jack-in-the-Box is a fictional character in the comic book series Astro City. Created by writer Kurt Busiek and artists Brent Anderson and Alex Ross, Jack-in-the-Box is a prominent superhero of Astro City, rather in the vein of Spider-Man and the Creeper. He is motivated by a powerful desire for justice based on his own family history, a strong sense of responsibility to society based on his expertise and capabilities, and the sheer enjoyment of being a superhero.