Who’s Who In "Weak Hero Class 2" Cast and Where You've Seen Them Before
- Disha Paul
- May 9
- 3 min read
The wait is over — Weak Hero Class 2 is here, and fans are calling it one of the best K-drama sequels of 2025. With intense action, powerful storytelling, and a cast that’s full of rising stars and familiar faces, the series has everyone buzzing again.
If you’ve found yourself wondering, “Where have I seen that actor before?”—don’t worry, we’ve got you covered.
Here’s a complete guide to the Weak Hero Class 2 cast and their most notable past roles.
Park Ji Hoon as Yeon Si Eun
Park Ji Hoon returns as Yeon Si Eun, the brainy fighter we all rooted for in season one. Before becoming the face of Weak Hero, Ji Hoon led the 2021 college youth drama At a Distance, Spring is Green, where he played the troubled but charming Yeo Joon.
Fans of webtoon adaptations might also remember him in Love Revolution, where he shone as the loyal and love-struck Gong Ju Young.
Ryeoun as Park Hu Min
Ryeoun joins the sequel as the intense and mysterious Park Hu Min. He's best known for his breakout role as the time-travelling guitarist Han Eun Gyeol in Twinkling Watermelon —one of 2023’s most loved fantasy dramas.
He also played Yoo Jin U in Namib, where his acting range drew plenty of praise.
Choi Min Young as Seo Joon Tae
You might recognise Choi Min Young as the sweet and swoon-worthy Dae from both seasons of Netflix’s XO, Kitty. But before his Netflix fame, he played Baek Yi Jin’s younger brother in Twenty-Five Twenty-One —a small role that left a big impact.
Now, he’s back in high school uniform, but this time with a darker edge.
Lee Min Jae as Go Tak
Lee Min Jae continues his rising streak, playing the loyal Go Tak. He was the lovable Seo Geon Hu in Crash Course in Romance, where he stood out among the ensemble cast.
He’s also appeared in recent titles like Hide, Oh! Youngsim, and the school-themed comedy Kick Kick Kick, where he showcased his versatility as a youth actor.
Lee Jun Young as Geum Seong Je
Idol-turned-actor Lee Jun Young has been everywhere in 2024 and 2025. You’ve seen him in guest roles in Melo Movie and When Life Gives You Tangerines, and as a soldier in D.P. Season 1 (Episode 3).
His latest drama, Pump Up the Healthy Love, casts him as the lead in a quirky romance series. Expect a completely different side of him in Weak Hero Class 2.
Bae Na Ra as Na Baek Jin
Bae Na Ra adds depth to the new cast lineup. He had a standout guest role in D.P. Season 2 as a runaway soldier, and surprised many with his discreet drag queen role within the drama.
With his layered performance style, he’s quickly gaining attention among K-drama watchers.
Yoo Su Bin as Choi Hyu Man
Yoo Su Bin plays the cunning yet silly bully role called Choi Hyu Man in Weak Hero Class 2, reuniting with his director brother Yoo Soo Min from Season 1.
He’s best remembered for his legendary role as Kim Ju Meok in Crash Landing on You, the North Korean soldier who adored K-dramas.
Choi Hyun Wook as Ahn Su Ho
Choi Hyun Wook is already a familiar name. He played key roles in both Twinkling Watermelon and Twenty-Five Twenty-One, where he played the lovable Moon Ji Woong.
He also starred in Racket Boys, earning praise for his natural charm and emotional depth. In Weak Hero Class 2, he delivers a more grounded and gritty performance.
Which Cast Member Surprised You the Most?
Weak Hero Class 2 isn’t just about fists and fury — it’s about talent. This cast lineup is proof that Korea’s next generation of stars is thriving.
Whose transformation impressed you the most? Let us know which actor shocked you with their new role!