Former NCT Star Mark Reveals His Handsome Older Brother in New 'Happiest' Music Video, Sparks Actor Debut Buzz

Former NCT Star Mark Reveals His Handsome Older Brother in New 'Happiest' Music Video, Sparks Actor Debut Buzz cover

Former NCT member Mark has finally shown the world the face of his older brother, the famously handsome sibling he has talked about for years, in the music video for his new song “Happiest,” released on November 6.

According to Sports Kyunghyang, Mark’s older brother makes a surprise appearance in the “Happiest” music video, ending years of curiosity among fans who had only ever heard about him through Mark’s stories. The reveal came on the same day the song was released across music streaming platforms.

Mark has spoken about his brother since his early days in the industry, saying he was often told growing up that his older brother was the better-looking of the two. The brothers spent their childhood together in Toronto, Vancouver and New York, and his brother is reported to be a graduate of Korea University.

On the day the music video was released, Mark’s one-person agency, Upper Room, posted a photo of the two brothers standing side by side on its official Instagram account. The post was captioned with the playful Korean phrase meaning “there are two Marks,” and it tagged his personal social media account.

The post drew attention because Mark has long been known for keeping his family life strictly private. The public photo and the account tag have led some fans to wonder whether his brother could be preparing to enter the entertainment industry himself, possibly as an actor, though no such plan has been confirmed.

Netizens reacted with surprise and delight once the brother’s face was finally revealed. “Is that really Mark’s older brother? No wonder they look so alike,” one commenter wrote, while others said he lived up to everything Mark had said about him over the years. Some fans joked that the brothers could soon be running a family business if an acting debut followed.

No official statement was available about any entertainment plans for Mark’s brother, and the acting-debut talk remains fan speculation for now. The reveal itself, however, marks a rare moment of openness from an idol who has kept his family out of the spotlight throughout his career.

For now, fans have the music video and the Instagram photo as their first real look at the brother Mark has described for so long. Whether the appearance leads to anything more, the moment has already become one of the most talked-about topics surrounding Mark’s “Happiest” release.