7 Seo Kang-joon K-Dramas To Watch After His “Boyfriend on Demand” Cameo
- Disha Paul
- 1 day ago
- 4 min read
Seo Kang-joon has been a familiar face in Korean dramas for years, known for his expressive acting and striking visuals. From romantic characters to mysterious figures, the actor has built a diverse portfolio of roles that continue to attract new viewers.
Recently, Seo Kang-joon has been gaining fresh attention after appearing in Netflix’s romantic drama Boyfriend on Demand. As fans discover his cameo in the series, many viewers are now searching for other dramas to see more of his performances.
If Boyfriend on Demand made you curious about his work, here are some of the best Seo Kang-joon K-dramas worth adding to your watchlist!
Seo Kang-joon’s Cameo in Boyfriend on Demand
In Boyfriend on Demand, Seo Kang-joon appears as Seo Eun-ho, one of the idealized “virtual boyfriends” inside the dating simulation program used by Seo Mi-rae (Jisoo). Within the virtual scenario, Eun-ho represents the warm and charming college senior type that many viewers instantly find appealing.
Although the appearance is brief, the cameo quickly became a talking point among fans. His calm presence and romantic chemistry in the scene reminded viewers of the soft and emotionally grounded characters he often portrays in romantic dramas.
Best Seo Kang-joon K-Dramas To Watch
Jung Hae-seong (Seo Kang-joon) is an elite intelligence agent assigned to a dangerous mission that requires him to disguise himself as a high school student. While investigating a hidden criminal network connected to the school, he must maintain his cover among students and teachers.
As Hae-seong spends more time inside the school environment, he begins forming unexpected relationships that make the mission far more complicated than he anticipated.
Aired: Feb 21, 2025 - Mar 29, 2025
No. of Episodes: 12
Cast: Seo Kang-joon, Jin Ki-joo
Streaming Platform: Viki
Are You Human Too?
After a powerful business heir named Nam Shin falls into a coma following an accident, his scientist mother secretly replaces him with an advanced artificial intelligence robot called Nam Shin III. Both characters are played by Seo Kang-joon.
As the robot begins interacting with the world while being protected by bodyguard Kang So-bong (Gong Seung-yeon), the story explores whether an artificial being can truly understand human emotions.
Aired: Jun 4, 2018 - Aug 7, 2018
No. of Episodes: 36
Cast: Seo Kang-joon, Gong Seung-yeon
Streaming Platform: Viki
Kim Young-goon (Seo Kang-joon) becomes a police officer after witnessing a tragic incident during his childhood that involved corruption within law enforcement. Years later, he joins an internal affairs team dedicated to exposing unethical officers.
Working alongside veteran investigator Do Chi-gwang (Han Suk-kyu) and lawyer Han Tae-joo (Kim Hyun-joo), Young-goon uncovers hidden crimes that force him to confront painful truths about his past.
Aired: Jul 6, 2019 - Aug 25, 2019
No. of Episodes: 16
Cast: Seo Kang-joon, Han Suk-kyu, Kim Hyun-joo
Streaming Platform: Viki
The story follows the long and complicated relationship between On Joon-young (Seo Kang-joon) and Lee Young-jae (Esom). The two meet in their twenties and experience love, separation, and reunion over a span of twelve years.
Through different stages of adulthood, the drama shows how personalities change, and relationships evolve with time.
Aired: Sep 28, 2018 - Nov 17, 2018
No. of Episodes: 16
Cast: Seo Kang-joon, Esom
Streaming Platform: Netflix
Baek In-ho (Seo Kang-joon) is a talented pianist whose carefree personality hides a complicated past. After returning to college, he reconnects with Hong Seol (Kim Go-eun) and becomes part of a tense group of relationships surrounding mysterious student Yoo Jung.
The drama explores the hidden sides of people’s personalities and the emotional struggles of university life.
Aired: Jan 4, 2016 - Mar 1, 2016
No. of Episodes: 16
Cast: Park Hae-jin, Kim Go-eun, Seo Kang-joon
Streaming Platform: Netflix
Im Eun-seob (Seo Kang-joon) lives a quiet life running a small bookstore in a peaceful countryside village. His calm routine changes when Mok Hae-won (Park Min-young) returns to the town after leaving Seoul due to personal struggles.
As the two reconnect, they slowly build a warm and comforting relationship while healing from emotional wounds.
Aired: Jan 4, 2016 - Mar 1, 2016
No. of Episodes: 16
Cast: Seo Kang-joon, Park Min-young
Streaming Platform: Netflix, Viki
Final Thoughts
Seo Kang-joon continues to attract attention with his ability to bring emotional depth to very different types of characters. Whether he is playing a quiet bookstore owner, an artificial intelligence robot, or a determined investigator, his performances often leave a strong impression on viewers.
His cameo in Boyfriend on Demand has once again sparked interest in his past dramas, making it the perfect time for fans to explore the roles that helped shape his acting career.
Which Seo Kang-joon drama is your favorite? Let us know in the comments.