Have you ever counted how many TV shows made you suffer from "bad boy syndrome"? With their good looks and irresistible charms, bad boys in K-dramas will make you think twice for their anti-hero persona. They are the tough guys, misunderstood loners, and they have irresistible charms. From Lee Joon Gi to Woo Do Hwan to Jang Hyuk, these Korean actors played as bad boys who we unapologetically fell in love with!

Lee Joon Gi as Wang So (Moon Lovers: Scarlet Heart Ryeo)

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Tough and irresistible Wang So is one of the brothers to become a king. When he meets Hae Soo (IU), he falls in love with her.

Lee Joon Gi gave us that love-hate relationship in his role as anti-hero. Though he is doing all for things as part of his responsibilities in the kingdom, he loves Hae Soo with all his heart.

Song Joong Ki as Vincenzo Cassano (Vincenzo)

Who wouldn't fall for the charismaric mafia lawyer Vincenzo Cassano? He's not just clever, mind you. He can also sweep you off your feet with his fighting skills, whether with a gun or just his fists, his wealth, and of course his attractiveness!

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In the revenge drama "Vincenzo," he teamed up with the headstrong Hong Cha Young (Jeon Yeo Bin), and the two gradually take down the corrupt Babel Group.

And while Vincenzo doesn't believe in love, he ironically falls for his partner in crime. So lucky!

Ji Soo as Go Bok Dong (Angry Mom)

His hot temper and carrying so much emotion get him into many fights.

In drama "Angry Mom," Ji Soo plays a sensitive and tough character with a lot of complex. Though he has so many issues, he overcomes them and gets smitten by Jo Bang Wool (Kim Hee Sun).

Seo In Guk as Myul Mang (Doom At Your Service)

In the 2021 fantasy K-drama "Doom At Your Service," Seo In Guk starred as Myul Mang, an immortal who brings misfortune and destruction on earth. But despite his significant role between heaven and earth, he lacks enthusiasm. He's stubborn and ill-tempered, and does his work without passion - not until he meets a terminally-ill web novel editor Tak Dong Kyung (Park Bo Young).

The two then strike a deal that she will have to fulfill her last wish before going to the afterlife.

Hwang In Yeop as Han Seo Jun (True Beauty)

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We'd be lying if we say Hwang In Yeop didn't steal the spotlight in the romantic-comedy drama "True Beauty." In the series, he portrayed the character of the troublemaker Han Seo Joon, who charms everyone with his good looks and bad boy aura as he rides his priced motorcycle.

And well, yes, it's true that he gave us major second lead syndrome!

Won Do Hwan as Kwon Shi Hyun (Tempted)

Woo Do Hwan's character, Kwon Shi Hyun is a rich boy and only cares about his fellow rich friends he often hangs out with. He also picks up women he likes to toy with. His plan was to play along with his friends and nothing serious with Eun Tae Hee (Red Velvet's Joy). But then love hits him and falls in love with her innocence and beauty.

"Tempted" is one example of a story of a nice girl who falls for bad boy, but if it will be Woo Do Hwan, admit it, anyone (even you) would give in!

Yoo Yeon Seok as Gu Dong Mae (Mr. Sunshine)

Yoo Yeon Seok stars as the villain Gu Dong Mae in "Mr. Sunshine" that you will both love and hate. With his intense gaze and softness inside will make you feel confused as to who he really is. He only thinks of destruction, but when he meets Go Ae Shin (Kim Tae Ri), his heart melts and he does everything to make her know how he feels.

Song Kang as Park Jae Eon (Nevertheless)

Song Kang received so much hate in this drama, but that was not because he did bad - but it was because he did so good at being the bad guy in "Nevertheless." A walking red flag, Park Jae Eon (Song Kang) toyed with Yu Na Bi's (Han So Hee) feelings as he wasn't ready to commit to a serious relationship.

After it was revealed he had trust issues that make him unfit for Na Bi, he worked hard to change himself to earn the lady's love and trust.

So Ji Sub as Cha Moo Hyuk (I'm Sorry, I Love You)

So Ji Sub is one of the OG bad boys in K-dramas. His role as a gangster in "I'm Sorry, I Love You" shows no mercy in earning money in various illegal ways. His life went into astray as he grew up overseas when his real mother had him adopted. This is the classic story of a bad boy syndrome that life's adversity makes him survive through evil ways.

Jang Hyuk as Doo Chil Seong (Wok of Love)

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In character as a gang leader and owns a Chinese restaurant, Doo Chil Seong (Jang Hyuk) in "Wok of Love" is a businessman who is ruthless to those who get wrong and people fear him for this. But things change when he meets Seo Poong (2PM Lee Junho), whom he forms a brother-like bond with. He softens more when he falls in love with Sae Woo (Jung Ryeo Won).

Kim Jae Wook as Noh Go Jin (Crazy Love)

As what the title suggests, Noh Go Jin and Lee Shin Ah's (f(x) Krystal) relationship is pretty complex. He is a genius mathematics professor and the latter is his secretary, who always deals with his tantrums and, well, craziness.

Their relationship takes a turn when Shin Ah learns she doesn't have much time to live, while Go Jin receives a death threat.

Song Seung Heon as Han Tae Sang (When a Man Falls in Love)

Han Tae Sang (Song Seung Heon) is merciless when it comes to people who mess with him. He is respected as the leader of the gang. But love always makes a cold-hearted person like him soften. He meets Seo Mi Do (Shin Se Kyung), and he does everything to make sure she is in his world.

Lee Soo Hyuk as Park Joong Gil (Tomorrow)

Being a grim reaper isn't an easy job, what's more if you're the head of a team of grim reapers who deal with death and afterlife every single day? Such is the responsibility of Park Joong Gil (Lee Soo Hyuk), and he's extremely stern when it comes to his work that he isn't scared to throw hands when things don't go his way.

Still, we know he has a heart of gold underneath his cold exterior and austerity. Let's find out in the ongoing fantasy Korean drama "Tomorrow" on Netflix!

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Do you know other "bad boy" characters in Korean dramas? Tell us in the comments!

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