Kwak Si-yang

Kwak Si-yang is a South Korean actor known for his tall figure, calm voice and strong screen presence. He is loved as Baek Tae-min in Chicago Typewriter and as Jin Seung-ju in Flex X Cop. He can play a cold rival, a kind chef or a rich heir with equal ease.

Kwak Si-yang is about 186 cm (6 ft 1 in) tall.

Early life

Kwak Si-yang was born Kwak Myeong-jin on January 15, 1987, in Seoul, South Korea. He studied civil engineering at Dankook University but later left the course to follow a different path. He first worked as a model and appeared at Seoul Collection in 2005. After a leg injury in a traffic accident, he had to stop modelling for a time. He finished his military service, and during that time he watched many dramas and decided that he wanted to become an actor.

Career and breakthrough

He made his acting debut in 2014 in the drama Glorious Day and the film Night Flight. In 2015, he won fans as Seo Joon, a kind chef in Oh My Ghost, and he took a lead role in the daily drama All is Well. His big step came in Chicago Typewriter in 2017. He played Baek Tae-min, a famous writer and rival, and also Heo Young-min in the past story. The double role showed his skill and made him well known.

Popular roles

Kwak Si-yang also played Yoo Min-hyuk, a time traveller in Alice in 2020, and Prince Su-yang in Lovers of the Red Sky in 2021. In Flex X Cop in 2024, he played Jin Seung-ju, the older brother in a rich family who stands in the shadow of power and family secrets. His quiet and firm acting made Seung-ju a character viewers loved to watch and discuss.

Recent work

In 2025, he played Kim Shin-won in My Dearest Nemesis, a sweet office romance role. He keeps moving between romance, history and action, and he chooses roles with care. Fans enjoy his steady growth, and many are waiting to see which strong character Kwak Si-yang will bring to life next.