I'm assuming you're asking about the web novel 'Infinite Bloodcore' because 'Bad Infinite' might be a typo or a less common alternative title. The core cast in that story revolves around the protagonist, a young man named Fang Yuan who gets transported to a cultivation world, but the narrative quickly expands into a massive ensemble. Fang Yuan himself is a brilliantly ruthless and calculating lead, starting from nothing and using his wits to survive in a brutally competitive universe. His journey is less about traditional heroism and more about strategic advancement and understanding the fundamental rules of power in his new reality, which makes him a fascinating, if sometimes chilling, character to follow.
Beyond the protagonist, the key figures often include the various rivals and mentors he encounters, like Gu Yue clan elders who represent the established power structures he must navigate or outmaneuver. The supporting cast isn't static; characters rise and fall in importance based on Fang Yuan's shifting goals and alliances. The world is populated with ancient beings, scheming clan leaders, and fellow transmigrators whose own agendas create a complex web of conflict. The character dynamics are the engine of the plot, driving the endless cycle of struggle, betrayal, and ascension that defines the series' relentless pace. I always found the sheer scale of the cast meant you were constantly meeting new players with their own deep-seated motivations, which kept the political and martial landscape feeling incredibly vast and unpredictable.