Described as more of a bully than a mastermind, Tumble is ferocious, brutish and cruel. He takes great pleasure in mocking the unfortunate and treating those he has terrorized into servitude with physical punishment. He is also short-tempered, and does not take kindly to outside interference. He is also very vengeful, as seen when he assured Sonic and Knuckles that they had made "lifelong enemies" of out of him and Rough after they defeated them. In stressful situations, he also tends to be stubborn, as seen when he repeatedly tried to get his Wispon to work, even though it was obviously that it was out of commission.

Like Rough, Tumble has displayed a quirky sense of showmanship: for introducing themselves, the skunk brothers have prepared a routine where they tell about themselves with a rhyme while striking flashy poses.

Since there are no canonical voices for him yet, I'm imagining a big gruff guy trying to sound to be smart.