Wheeler, known in Japan as SAL (Super Animal Learning), is an experimental chimpanzee that has the ability to duel. Wheeler escapes the facility in which he's being held and takes Jasmine as a hostage. Jaden duels for her freedom and wins, only to realize Wheeler's going to have to go back to the laboratory from which he escaped from. But with some help from Professor Banner, Wheeler is set free to live in the wild with the rest of his kind. In the second season, he makes a brief cameo to remind Jaden of his time spent at Duel Academy and point him in the right direction, enabling him to face Aster in a rematch. In second year, Wheeler came back while Jaden was lost in the forest, with Jaden delusionally believing Wheeler to be past opponents of his.
In the English Dub, Wheeler is voiced by Andrew Rannells, while Hidenobu Kiuchi takes the role in the Japanese version. In the English Dub, Wheeler is possibly named after Joey Wheeler, who Seto Kaiba titles "a dueling monkey" during the second series of the original Yu-Gi-Oh! anime. In the Japanese version, his name is pronounced "Saru," the Japanese word for "monkey."
