YMMV / Batman: The Animated Series E6 "The Underdwellers"

• Harsher in Hindsight: Batman says the Sewer King is worse than Joker for his treatment of the orphans. Come Batman Beyond: Return of the Joker...
• Moral Event Horizon: The Sewer King crosses the line by kidnapping children to use as slave labor and steal things for him. He trained them to be severely photophobic and afraid of adults. He also scares them with his trained crocodiles and makes it forbidden for the children to make a sound, punishing them by shoving them into a tiny little room with bright lights without food or water for hours — and sometimes, he does it on a whim, even to a kid who managed not to utter a peep despite the extreme scare tactics. He was one of the few villains Batman had seriously considered killing on the spot, and that's saying quite a lot.
• One-Scene Wonder: The Sewer King, a single one-shot villain who is a Victorian London-esque Fagin villain transplanted to Gotham is popular, all the more so since he's the one bad guy in the original series that Batman visibly contemplates killing then and there.

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