ActingMoon Ji-yoonBorn 1984-02-18· South KoreaMoon Ji-yoon (문지윤) is a South Korean actor.Known forThe Sound of Your Heart2016COMEDYBig2012COMEDYThe Merciless2017ACTIONFull filmographyThe Sound of Your Heart2016COMEDYBig2012COMEDYThe Merciless2017ACTION