Parents

Villains who are Parents such as fathers and mothers; any villain with children or offspring belongs in this category. Adoptive parents, foster parents, step-parents and legal guardians can qualify as well (e.g. Thanos and Chakal).

Many are showcased as abusers and/or disciplinarians as they may hurt their children psychologically, physically or worse because they do not obey or through sadism though not all villainous parents mistreat their children. Likewise they might corrupt them and/or destroy their innocence thus shifting them towards villainy with some becoming tragic and forced to carry out their legacies should they fail and/or die (e.g. Whiplash and Aria).

In the worst cases some can be Pure Evil as they are willing to be evil without remorse or positive qualities even letting their children die as long they don't interfere or outlive any usefulness (e.g. High Priestess, King, Ego, Emperor Palpatine, William Afton, Catherine Ortiz, Bob Underwood, Cell, Scarlet King, Dio Brando, Albert Wesker, Trigon and Judge Claude Frollo).

On the other hand, being a Parent can stand as a redeeming quality because some reform to protect, take care of or save their children from Big Bads and/or Bigger Bads or because they realize their wrongdoings (e.g. Darth Vader, the Cassette Man, Michael De Santa, Theodore Bagwell and Zeta). In other cases they may not reform but deep down it is implied that they indeed care for their children (e.g. Max Shreck, Zira, Mr. Boss and Warren Vandergeld).

There are also characters unaware of being Parents or simply not caring, though the latter counts as being neglectful (e.g. Irene Belserion, Harry Wormwood, Clay Puppington and Mr. and Mrs. Doofenshmirtz). It is also possible that some are tragic themselves and became evil because they lost their children (e.g. Yokai, Martha Wayne, President Alma Coin, Martin Walker and Lionel Canter).