Mr. Howell is a strict 6th grade teacher. He is against Origami in the school and appears to have a grudge against Kellen, Dwight, and Tommy. Kellen states that Mr. Howell looks like Jabba the Hutt and later the Rancor. In the The Surprise Attack of Jabba the Puppett, he states that he knew all along about Kellen's Howell the Hutt thing and even remarked that it was fitting for him as Jabba was his favorite character in Star Wars. He also wields Jabba the Hutt in The Surprise Attack of Jabba the Puppett. In Emperor Pickeletine Rides The Bus, it is stated that he loves Principal Rabbski.
- In the first book, Mr Howell had white hair, in others he had black.