Often, we tend to overlook these actors' characters as fathers in the K-dramas we watch. But as we celebrate Father's Day, we share with you some of the excellent Korean actors who impressed the viewers with their iconic father roles and truly deserve immense praise for portraying the pillar of the home.

Happy Father's Day to all the fantastic appa / abeojis in the world!

Lee Do Hyun in "18 Again"

Promising actor Lee Do Hyun is one of the known versatile Korean actors today, and thanks to his performances in just a year, he has been receiving lots of love from viewers worldwide.

Unlike many rising stars, Lee Do Hyun already challenged himself by taking on challenging roles and has worked with several projects to build his name in the industry.

And through his hard work and natural talent in acting, Lee Do Hyun impressed the audiences with his role as a young father in the hit JTBC series 18 Again.

This opened a lot of doors for the Sweet Home star. He perfectly immersed himself as a loving and protective dad who does everything for his children. He played as the younger version of Hong Dae Young (Yoon Sang Hyun).

Yoo Jae Myung in "Vincenzo"

Notable actor Yoo Jae Myung has made another excellent portrayal in tvN's legal-comedy drama Vincenzo. He portrayed Hong Yu Chan, a lawyer and father of Hong Cha Young (Jeon Yeo Bin).

Despite having a rough relationship, Hong Yu Chan remains a father to his sharp-tongued daughter. He also became a father figure to Vincenzo Cassano (Song Joong Ki) while adjusting to his life in Seoul.

His role in Vincenzo may be short but left a significant impact on the story.

Viewers were moved by his grit and selflessness, especially his heart for the needy - which inspired him to name his law firm "Jipuragi," meaning "the last straw." He is a hero and a father to all his clients, and Hong Cha Young is the proudest to be her father's daughter.

Park Ho San in "True Beauty"

Who wouldn't forget actor Park Ho San for his heartwarming and comical character in tvN's romantic-comedy series True Beauty?

Starring as Im Jae Pil, he became the first and only person who believed in Lim Ju Kyung (Moon Ga Young) among the members of the family.

Even though his wife nagged at Lim Ju Kyung, Im Jae Pil stood up for her.

His shoulder is always ready for his daughter to cry and lean on when things get tough, and he's the one who understands her the most.

Plus, he also became a father figure to Lee Su Ho (Cha Eun Woo), and treated him as his true son.

ALSO READ: Cha Eun Woo Gives a Sneak Peek of His Upcoming Film 'Decibel'

Jo Jung Suk in "Hospital Playlist"

Jo Jung Suk has such an adorable chemistry with the child star Kim Jun who plays as his son in the drama Hospital Playlist.

Their father and son relationship warms the hearts of HP fans.

As a supportive and loving father to Lee Woo Joo (Kim Jun), Lee Ik Joon (Jo Jung Suk) always prioritizes his son no matter how busy his schedule is.

What's more impressive is that he also has time to look after his health by exercising, despite his hectic schedule as a doctor!

IN CASE YOU MISSED IT: 'Hospital Playlist 2' Episode 1 Features Yoo Yeon Seok and Shin Hyun Bin's First Date + Jeon Mi Do Chooses Friendship over Jo Jung Suk

Sung Dong Il in "Reply 1997" & "Reply 1988"

And the most iconic among all is veteran actor Sung Dong Il, who's played as abeoji in a plethora of K-dramas.

His natural father vibe is what makes his role more convincing, not to mention that he can be funny, serious, emotive, everything - proving his versatility.

Sung Dong Il can effortlessly immerse into his role efficiently. Who doesn't even know him, honestly?

READ MORE HERE: 4 Korean Drama "Appas" to Celebrate This Father's Day

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Written by Shai Collins