"SKY Castle" is the hottest drama at the moment in Korea. With such huge popularity in Korea, fame started to spread into the international K-Drama community.

Main actors are getting a lot of spotlights but supporting roles are also getting attention from both viewers and Korean media.

If you are watching the drama, you might remember the character Cha SeoJoon. He is the twin brother of Cha KiJoon. His father Cha MinHyuk is obsessed with the social hierarchy and his 'pyramid'. Cha SeoJoon is a soft high school student.

The actor playing as Cha SeoJoon is Kim DongHee. He is born in 1999 and is pa

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