Even though Jason, John, and Robyn are siblings. They have different last names in the credits: Canmore, Carter, and Correy respectively. See more
This isn't over, Demon! My family has hunted you for over five hundred years! If I fail, then my son will take up the hunt, and his son in turn! Even if it takes another 500 years, the hunt won't end until the last gargoyle dies!