Song Geon-hee

Song Geon-hee is a South Korean actor known for his warm smile and gentle, sincere acting. He became loved around the world as Kim Tae-sung, the loyal second lead of the time-slip romance Lovely Runner (2024). Before that, he impressed viewers in the record-breaking family drama SKY Castle (2018), and his career has risen step by step ever since.

Song Geon-hee is 178 cm (5 ft 10 in) tall.

Early life

Song Geon-hee was born on August 16, 1997, in South Korea. He studied film at Sejong University and trained as an actor while taking small screen roles. His soft voice and boyish charm made him a natural choice for youth and school dramas at the start of his career.

Career and breakthrough

Song Geon-hee began acting in 2017 and appeared in My ID Is Gangnam Beauty (2018) and Love Alarm (2019). His breakthrough came with SKY Castle (2018), where he played Park Young-jae, a top student crushed by his parents' pressure. The painful story moved millions of viewers, and the drama became one of the highest-rated cable dramas in Korean history.

Popular roles

In The Tale of Nokdu (2019), Song Geon-hee plays Jeon Hwang-tae in a colourful historical romance. He also joined the fantasy mystery Missing: The Other Side (2020) as Thomas and the sweet Mystic Pop-up Bar (2020). Each role added new colours to his image, from soft friend to mysterious stranger.

Recent work and why fans love him

In Lovely Runner (2024), his Kim Tae-sung is a kind and funny model student who loves the heroine from afar, and fans around the world praised his sweet performance. He also leads the thriller The Scarecrow (2026). Fans love his honesty, warmth and steady growth from small parts to leading roles.