Complex sentence: Kwak Hee-sung (곽희성) (April 18,1990) is a South Korean actor and model who made his debut in TV Chosun series "Korean Peninsula" where he played a North Korean assassin sent to kill the future President of Korea.
Split into simpler sentences: Kwak Hee-sung (곽희성) (born April 18,1990) is a South Korean actor and model. He made his acting debut in the TV Chosun cable series "Korean Peninsula" where he played a North Korean assassin sent to kill the future President of Korea.