Creagar was Hill High's sports coach.
Creagar was the over-competitive coach of the Hawks, and accepted nothing but victory from his players no matter what. When some of them turned to slappers, not only did he look the other way, but took an active role in keeping their secret, to the point of keeping watch in the school's locker room after closing time. At one point, Batman came to investigate and found the slappers inside Mason Forrest's locker, but Creagar ambushed him, leading to a brutal fight. Batman subdued him and left with the evidence, allowing him to stop the production of slappers, and Creagar was put on leave pending investigation.