The Villainess is a 2017 South Korean action thriller film directed by Jung Byung-gil, starring Kim Ok-vin. The film had its world premiere at the 70th Cannes Film Festival in May 2017.

Kim Ok-vin, also known as Kim Ok-bin, is a South Korean actress. She made her debut in an online beauty contest in 2004, and began her acting career with a role in the 2005 film Voice. She appeared in the television drama series Over the Rainbow, and in films such as Dasepo Naughty Girls, The Accidental Gangster and the Mistaken Courtesan and The Villainess. She has received several award nominations, and won Best Actress at the 2009 Sitges Film Festival for her role in Thirst.