Hayato Maeda, known in the 4Kids dub as Chumley Huffington, is one Jaden Yuki's friends in Yu-Gi-Oh! GX series. He is hungry and lazy guy which fights rarely, and he is rarely lessons. His father does salsa for a living. Later, he works with Pegasus J. Crawford.
Chumley is often described as dense, lazy and irritable but underneath it all has a kind and supportive heart and he cares deeply for his friends safety and well being.
Chumley was forced to retake his freshman year after he failed his first time around. His best friends, Jaden Yuki and Syrus Truesdale, come to Duel Academy, and encourage Chumley to gain more confidence in himself.
Throughout the series, Chumley participates in only two Duels: the first against his father, Mr. Huffington, and the second against Dr. Crowler. His father believed that his son's efforts at Duel Academy were wasted and that he would be better off leaving. To put an end to the conflict, Chumley struggled valiantly against his father's special tactics, but ultimately lost. Despite this, he allowed his son to continue his studies, as he saw that Chumley had actually learned something, and that his friends would always support him.
After being a sidekick for most of season 1 Maximillion Pegasus offers Chumley a job at Industrial Illusions as a card designer nearing the end of the first year after he wins a card-design contest by creating "Ayers Rock Sunrise". In order to determine whether or not he will be permitted to leave the school, Crowler Duels with him in one final test. Although Chumley manages to hold his own, even getting the chance to play the first card of his own creation, "Ayers Rock Sunrise", he is again defeated. Crowler, however, lets him move on regardless, impressed by how far in his studies he has come.