|Book debut||King Arthur|
|Cartoon debut||"The Return of the King"|
Rusty is a student of Glenbrook Academy in Mr. Pryce-Jones's 3rd grade class. He beat Buster in the pie eating contest because of his 18-liter stomach, which he got from practice eating giant breakfasts.
Rusty is an aardvark similar in head shape to Arthur's, but with a much darker complexion.
He wears the Glenbrook uniform with a white collared shirt, a dark blue tie, a light blue V-neck shirt, and a medium blue jacket bearing the Glenbrook insignia.