Well known for leading roles in the series Doctor Stranger, I Can Hear Your Voice, School 2013, and Pinocchio. He has also been seen in films such as Hot Young Bloods, No Breathing, and The Face Reader. In 2019, he began starring in the Korean romantic comedy series Romance Is a Bonus Book.
He made his professional acting debut in the 2009 short film Sympathy after beginning his career as a runway model four years prior.
He has won several awards in several categories of various award shows. He has acted in commercials, in music videos, and in variety shows as well.
He is from South Korea and attended the South Korean Konkuk University where he majored in Professional Motion Pictures Art. In 2022, he began a relationship with singer IU.
He co-starred with Park Shin-hye in Pinocchio from 2014 to 2015.