If you're an avid K-Drama fan, chances are you've seen some actors portray one too many characters in popular series, and you're convinced that these actors don't age.

These stars are not only great in their craft but also armed with timeless visuals and charisma. Here are the hottest K-Drama stars who are already in their 40s!

So Ji Sub (1977)

Who could tell that the award-winning star So Ji Sub is already 44 years old? The actor isn't only charismatic but also physically handsome for his age!

His lean physique and enthusiasm allow him to even pass as a 30-year-old. So Ji Sub is known for his works "My Secret Terrius," "Memories in Bali" and "Oh My Venus."

At the moment, the actor stars as a former doctor-turned-lawyer in the newly premiered series "Doctor Lawyer" along with Im Soo Hyang, which airs every Friday and Saturday on MBC and Disney+.

Kwon Sang Woo (1976)

Kwon Sang Woo received critical acclaim for his notable acting role in the classic K-Drama "Stairway to Heaven," which aired in 2003.

Two decades later, it is as if the actor didn't age at all. The actor boasts his muscular body and toned abs that are more often than not compared to newly debut stars.

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At 46 years old, the actor maintains a great and lean body that allows him to stay active and younger than his actual age.

In fact, he's the envy of most television personalities for being able to stay in fantastic shape despite his age.

Ji Sung (1977)

With his gentle, deer-like features and heart-fluttering smile, no one could ever tell that actor Ji Sung is actually 45 years old!

In addition to that, he's still as nimble as ever, as if the actor is only in his mid-20s. Ji Sung appeared in many classic K-Dramas like "Kill Me, Heal Me," "Entertainer" and most recently, "The Devil Judge."

This July 27, the actor returns with a new two-character role in the upcoming tvN crime thriller series "Adamas."

Namgoong Min (1978)

The actor recently made everyone swoon with his manly charms in the highly loved espionage thriller series "The Veil."

Namgoong Min is one of the actors in the industry who possesses the greatest body out of all talents. At first glance, anyone will be able to notice the plump muscles and amazing body shape the actor has.

At 44, the actor still has the drive and motivation to hit the gym regularly and maintain his buff figure. Perhaps this is the reason he stays young.

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KDramaStars owns this article.

Written by Elijah Mully.