Love Seo Kang-joon in "A Love Other Than Yours"? 7 K-Dramas You Need to Watch Next
Seo Kang-joon is having another major K-drama moment.
The actor is currently starring in A Love Other Than Yours, where he plays Namgung Ho, a man whose ten-year relationship begins to fall apart just when he thought marriage was the obvious next step.
With the drama trending, many viewers are discovering or rediscovering Seo Kang-joon and looking for more of his K-dramas. Fortunately, his filmography has a lot to offer.
From his unforgettable role in Cheese in the Trap to the double role that showed his range in Are You Human Too?, Seo Kang-joon has moved through romance, thriller, sci-fi, and action over the years.
Here are seven Seo Kang-joon K-dramas worth adding to your watchlist.
1. A Love Other Than Yours (2026)
If you are here because Seo Kang-joon is currently everywhere thanks to A Love Other Than Yours, this is obviously the first drama to watch.
Seo Kang-joon plays Namgung Ho, who has been dating Lee Mi-do, played by Ahn Eun-jin, for ten years. Their relationship is comfortable and familiar, but the couple begins questioning whether love is enough when the excitement between them starts disappearing.
Namgung believes their long relationship should naturally lead to marriage, while Mi-do worries that getting married will only trap them in a relationship that no longer feels the same.
The drama focuses on the complicated reality of long-term love rather than giving viewers an instantly perfect romance. It is emotional, funny, and sometimes painfully relatable.
Aired: Sep 12, 2026 - Nov 1, 2026
No. of Episodes: 14
Cast: Seo Kang-joon, Ahn Eun-jin, Lee Joo-ahn, Jo Aram
Streaming Platform: KBS2, Prime Video
2. Cheese in the Trap (2016)
If you want to see one of Seo Kang-joon's most memorable roles, go back to Cheese in the Trap.
He plays Baek In-ho, a talented pianist whose career is affected by an old injury. He has a complicated history with Yoo Jung, played by Park Hae-jin, and their relationship becomes even more complicated when both become connected to Hong Seol, played by Kim Go-eun.
In-ho is rough around the edges but has a softer side that gradually becomes visible. His complicated feelings for Seol also turned him into one of the drama's most talked-about characters.
Even years later, Baek In-ho remains one of the roles many viewers immediately associate with Seo Kang-joon.
Aired: Jan 4, 2016 - Mar 1, 2016
No. of Episodes: 16
Cast: Seo Kang-joon, Park Hae-jin, Kim Go-eun, Nam Joo-hyuk
Streaming Platform: Viki, Netflix in select regions
3. Are You Human Too? (2018)
Want to see Seo Kang-joon play two completely different characters in one drama?
Are You Human Too? is the one to pick.
Seo Kang-joon plays Nam Shin, the heir to a powerful family, as well as Nam Shin III, an android created to look exactly like him.
After the human Nam Shin falls into a coma, the android is forced to take his place and enter a world filled with family secrets, corporate power struggles, and people who do not know his true identity.
The fun comes from watching Seo Kang-joon switch between the cold and difficult human heir and the warmer android who slowly develops his own understanding of human emotions.
It is also one of the best examples of the actor stepping outside a straightforward romance role.
Aired: Jun 4, 2018 - Aug 7, 2018
No. of Episodes: 36
Cast: Seo Kang-joon, Gong Seung-yeon, Lee Joon-hyuk, Park Hwan-hee
Streaming Platform: Viki, Kocowa in select regions
4. Watcher (2019)
The 2019 crime thriller follows three people who become connected through a corruption investigation inside the police force. Seo Kang-joon plays Kim Young-goon, a young police officer who becomes involved in a team investigating the truth behind a disturbing case.
Unlike his softer romantic roles, Young-goon is surrounded by suspicion, betrayal, and secrets.
The drama slowly reveals how deeply corruption has spread within the organisation, while the main characters struggle to figure out who they can trust.
If you prefer Seo Kang-joon in a serious thriller rather than a romantic drama, Watcher should be near the top of your list.
Aired: Jul 6, 2019 - Aug 25, 2019
No. of Episodes: 16
Cast: Seo Kang-joon, Han Suk-kyu, Kim Hyun-joo
Streaming Platform: Viki, Viu in select regions
5. When the Weather Is Fine (2020)
For viewers who prefer slow-burn romance, When the Weather Is Fine is a completely different side of Seo Kang-joon.
He plays Im Eun-seob, a quiet bookstore owner living in a small town. His peaceful life changes when Mok Hae-won, played by Park Min-young, returns to the area after becoming tired of her life in Seoul.
Eun-seob has secretly cared about Hae-won for years, but he does not rush to confess his feelings. Instead, their relationship grows slowly through everyday conversations and shared memories.
The drama has a warm winter atmosphere and focuses heavily on healing, family, and finding comfort in another person.
It is a great choice if what you love most about Seo Kang-joon is his softer romantic side.
Aired: Feb 24, 2020 - Apr 21, 2020
No. of Episodes: 16
Cast: Seo Kang-joon, Park Min-young, Lee Jae-wook
Streaming Platform: Viki, Netflix in select regions
6. Undercover High School (2025)
After completing his mandatory military service, Seo Kang-joon returned to television with Undercover High School.
This time, he plays Jung Hae-sung, a National Intelligence Service agent who goes undercover as a high school student while investigating a mysterious disappearance connected to a valuable historical treasure.
His new assignment forces him to trade his usual adult professional life for school uniforms, teachers, and teenage classmates.
The result is a mix of action, comedy, and romance, with Seo Kang-joon getting plenty of opportunities to show a more playful side of his acting.
It is especially worth watching if you want to see his post-military comeback and a role that combines action with comedy.
Aired: Feb 21, 2025 - Mar 29, 2025
No. of Episodes: 12
Cast: Seo Kang-joon, Jin Ki-joo, Kim Shin-rok, Yoon Ga-i
Streaming Platform: MBC, Viki, Kocowa in select regions
7. The Third Charm (2018)
The Third Charm is another Seo Kang-joon romance worth revisiting.
He plays On Joon-young, a man who approaches dating very differently from the confident romantic heroes usually found in K-dramas.
Joon-young is extremely organised and careful, while Lee Young-jae, played by Esom, is much more spontaneous and emotional. The two meet through a blind date and continue crossing paths as their relationship changes over the years.
Instead of showing one perfect romance from beginning to end, the drama follows the couple through different stages of their lives.
Their relationship has plenty of sweet moments, but it also shows how timing, personality, and growing up can affect love.
Aired: Sep 28, 2018 - Nov 17, 2018
No. of Episodes: 16
Cast: Seo Kang-joon, Esom, Yang Dong-geun, Lee Yoon-ji
Streaming Platform: Viki, Netflix in select regions
Final Thoughts
Seo Kang-joon has never stayed in one particular type of K-drama role for too long.
He has played a complicated second lead, a romantic bookstore owner, a police officer caught in a corruption case, an android, and an undercover intelligence agent.
Now, with A Love Other Than Yours, he is once again showing a more mature side as a man trying to understand whether a ten-year relationship can survive when love starts feeling different.
Whether you discovered him through his latest K-drama or have been following him since Cheese in the Trap, his filmography has something for almost every type of K-drama fan.
Which Seo Kang-joon drama is your favourite?
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