Kiefer

Kieper is a tomcat, who is in the fourth grade at Lakewood Elementary School. He is a member of the Tough Customers.

Appearance
Kieper is depicted with a cream complexion and short clumps of hair. He wears a red shirt with a horizontal yellow stripe and yellow cuffs, a black sleeveless biker jacket, dark gray jeans, and red and white high-top sneakers.

Personality
He is often a member of Binky's team in sports that opposes Arthur's team, such as roller hockey. His reputation is often harsh and he would get into various fights with people. From time to time, he wrestled with Rattles. He has also been mean to Arthur, such as grabbing at his sweater.

Triva

 * His last appearance so far was the episode Fifteen where he was part of the students listening to George answering the questions correctly.