He frecuently tries to hunt down the students of Scare School, but without any succes (either he fails to catch them, or they escape again shortly afterwards). The only time he actually managed to catch and contain a creature was in Power Outage (Part 3 and 4), in which he captured Razznik. He also once accidently discovered the Dimensional Tube to Scare School when he followed Casper, Ra and Mantha, and tried to catch all the students in the school. However, he was captured himself and had to be rescued by Casper and his friends, after which Jimmy used one of his own tools to erase his memories of Scare School.
He is a middle aged man with auburn hair and blue eyes. He wears big, round glasses, a blue shirt with a purple vest, brown pants and brown shoes.
When he is working, he wears a Creture Catcher uniform, which consists on a navy blue jumpsuit with four light blue pockets on the front, a black belt and black boots.
He is kind, bubbly and somewhat of an air-head. He is very close-minded when it comes to creatures, up to the point where he brainwashed his own son when he tried to stand up for the creatures. He is less strict with Jimmy than his wife.
Jimmy is Graham's only son. Graham is very protective of Jimmy and wants him to join him in the Creature Catcher business.
She is Graham's wife. They seem to love each other very much as seen in "Our Boy Wolfie".