Batman has one of modern media's most iconic rogues' galleries. Even beyond the Joker, a villain so popular that he's gotten multiple solo films, the Dark Knight's enemies often transcend Gotham's orbit. Among them are immortal warriors, ecological masterminds, and troubled geniuses. But perhaps the most dangerous is the villain who, on paper, seems the most mundane.
Source：https://www.cbr.com/batman-penguin-scariest-villain-dc-comics/
