Mr. Wolf is a predator with a long rap sheet of eating pigs and grandmothers. He wears a black suit and a white cowboy hat in an effort to appear respectable and friendly. Tired of being feared by the world, he serves as the enthusiastic but flawed leader of a new club aimed at performing heroic deeds. He struggles to understand what being "good" actually means and often resorts to his aggressive, predatory instincts to accomplish his goals.

Mr. Snake is a sarcastic and irritable reptile with a criminal record of eating pet store animals. He possesses a sneaky grin and shows zero initial interest in Mr. Wolf's plan to become a good guy. He prefers to serve his own goals and struggles significantly to suppress his natural predatory instincts during the group's early missions.

Mr. Piranha is a chaotic, outspoken fish who operates entirely out of his natural element on land. Known for eating tourists, he brings an abrasive energy to the group. He accepts the physical abuse and bizarre situations the team puts him through without holding a grudge, demonstrating a surprising tolerance for his teammates.

Mr. Shark is a massive, imposing predator whose size often prevents him from fitting properly into his surroundings. He maintains a perpetually hungry, somewhat clueless demeanor. His terrifying appearance, characterized by a blank stare and rows of pointed teeth, makes his attempts to look friendly completely ineffective.