|Jak (The Scooby Doo Adventures)|
Jak is the librarian in Norbert Castle.
Jak has little hair left, but what remains is brown. He also has black eyes and wears a monocle. Jak wears a white shirt with a blue waist coat.
Jak comes across as a genuine guy who is intelligent and enjoys literature. However, he can become jealous and sulk, but hides this to others.