Toppy Topran is a feral, teddy bear-like bounty hunter who consistently ends his sentences with "kuma." He sports an eyepatch for undisclosed reasons. Intrigued by Kyrie Illunis's unique personality, he joins the World Destruction Committee, becoming Kyrie's mentor and the group's most capable fighter. He shares a close bond with a much larger bear named Muffy, summoning her for special attacks while keeping a significant secret from her. His personal ambition is to achieve hero status in his own eyes, regardless of external recognition, and he harbors no prejudice against humans. He displays unexpected perceptiveness, noticing subtle aspects of Kyrie's personality, like hidden intelligence, leading him to conclude Kyrie possesses greater depth than apparent. Across all media, he forms a Heterosexual Life-Partners relationship with Kyrie. Actively participating in the committee, he occasionally influences key decisions. His character embodies a contrast between a cute exterior and formidable combat skills, driven by a need for personal validation as a hero despite the world's lack of acknowledgment. His relationship with Muffy involves an undisclosed element adding complexity, and his role remains consistent as the group's mentor and combat specialist.