Who are the primary villains featured in 'Batman: Dark Age'?

While 'Batman: Dark Age' doesn't heavily rely on supervillains like the Joker or the Riddler, it features more grounded antagonists like corrupt police officers, mob bosses (such as Rupert Thorne and Tony Bressi), and opportunistic criminals taking advantage of Gotham's chaotic state. It emphasizes the systemic corruption and organized crime Batman faces in his early years.