Batman has amassed quite an assortment of rogues during his time as the heroic protector of the crime-ridden Gotham City. His villains are among some of the most colorful and memorable figures in comics and include instantly recognizable figures such as the Joker, the Riddler, and the Penguin. Twenty years ago, Jeph Loeb and Jim Lee notably added to the Dark Knight's venerable assortment of adversaries with the creation of his most personal adversary, Hush, and his newest ongoing series has introduced a similar villain who has an equally deep connection to his son, fan-favorite Robin Damian Wayne.
Source:https://www.cbr.com/damian-wayne-shush-nemesis-batman-robin/