Mother by day, vigilante by night. South Korean actress Gong Hyo-jin is back with the new K-drama A Bona Fide Killer and this time her character lives a double life. The 46-year-old, who last starred as an astronaut in the 2025 series When The Stars Gossip, plays Yoo Bo-na, a seemingly ordinary working mum who is actually a secret lethal vigilante assassin named Kingfisher. Her husband Kwon Tae-sung (played by Jung Jun-won) is an investigative reporter unaware of her hidden identity and is unknowingly hunting down Kingfisher. In an interview with AsiaOne, Hyo-jin recalled her most memorable experience from filming the drama. Spoilers…