Top K-Drama Actor Shocks With Neck Transformation After Weight Loss

Fans are buzzing over actor Seo In Guk, after recent appearances revealed a striking change in his physique — particularly the transformation of his neckline following noticeable weight loss. Known for his roles in hit dramas such as Reply 1997, Doom at Your Service, and Death’s Game, Seo has long been admired for his versatile acting and boyish charm. But his latest look has become a hot topic online, with many netizens stunned by how dramatically slimmer he appears.

A month ago, when he was at a press conference for Netflix‘s Better Late Than Single, the star looked handsome but healthy.

His cheeks were full and round.

A month later, when he surfaced to promote his new drama Twelve, he seemed to have lost a ton of weight.

Photos circulating on community forums and social media show the star with a much sharper jawline and a visibly elongated neck, leading fans to comment that he looks almost like a completely different person.

Netizens pointed out that he truly did lose a lot of weight and that they were motivated to do the same.

• He really did lose a lot of weight. It can’t be helped as he really looks better that way.
• He motivates me to diet more than anyone else.
• So you’re saying that he’s going to film a rom-com with that face? I can’t wait.
• His face was pretty small during Better Late Than Single too, but seems like it got even smaller now.
• I thought the “before” was the “after.”

Seo In Guk has been open in the past about fluctuating weight for acting projects, revealing that he’s willing to change his body drastically to suit a role. It seems like he managed to pull it off once more for Twelve.