He is often called 'Big Dummy' or 'Blubber Butt,' which he doesn't tolerate, as he hates being ridiculed and also being called 'fat' or 'stupid.' Gantu is quite intelligent and shown to conduct decent plans for capturing experiments, but usually, due to interference from Lilo and Stitch, they end up backfiring. He also tends to endure the most pain and slapstick throughout the series, getting hurt very often.
However, he sometimes does get a happy ending in episodes such as ' Clip', ' Amnesio', ' Topper', ' Phoon', and ' Snooty'.
Gantu can be rather selfish as shown in ' Houdini' when he took credit for Reuben finding an experiment pod, only for it to backfire as the experiment was Fudgy, who smothered Hämsterviel in chocolate.
