Craig Hopkins

3rd Grade Male Rat is an unnamed third grader who made his first appearance in the episode Arthur's Eyes. He played the flute for the school band in Elwood City Turns 100!.

He makes regular appearances in many episodes. He appears to get along with other kids. His only line occurs while he is walking past Buster, Arthur, and Binky in the episode Buster's Growing Grudge.

Appearance
3rd Grade Male Rat is a rat with an olive green complexion. He has whiskers and a little hair. He wears a blue-and-white striped pullover and brown pants with blue sneakers. His backpack is green. In the episode Germophobia he wore light blue swim trunks.

Trivia

 * 4th Grade Male Rat maybe his older brother who is a fourth grader at Lakewood.
 * According to "Sue Ellen Moves In", Buster thinks he is an alien.