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[All] Who's singing in Saja Boys? Find out who the voice actors are, as well as K-Pop idols and actors who are involved!
The Netflix animated movie "KPOP Demon Hunters" is a hot topic, and the "Saja Boys" are the ones who are singing. Who on earth are they? We've put together a detailed list of the gorgeous cast and artists! It's full of information that K-POP fans definitely can't miss!
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table of contents 1. Who are the Saja Boys? 2. List of vocal artists 3. Each character: Complete guide to voice acting, vocals, and settings 4. Summary of the careers of the stellar cast and production staff 5. Social media reactions and fan reactions 6. Are the Saja Boys real? Or is it all fiction? 7. Frequently Asked Questions (Q&A) 8. Summary |
1. Who are the Saja Boys?
"KPOP Demon Hunters" is an animated film that was released worldwide on Netflix on June 20, 2025.
The story is a unique action fantasy in which the K-pop girl group Huntrix face off against the rival boy group Sadja Boys, who are possessed by demons. The Sadja Boys are ultra-authentic in both appearance and performance. What's more, their amazing singing voices have sparked a lot of buzz, with people asking, "Isn't this better than real K-pop idols?"
Fans were quick to comment, "Who on earth is singing?" and "His voice sounds too professional!". And then the shocking "people behind the scenes" were revealed:
2. List of vocal artists
In particular, many fans are curious to know who actually sings the songs of Saja Boys. In the table below, we have summarized the singers for each character in an easy-to-understand way.
| character | Singer (artist) | Background and Affiliation |
| Jinu (Jinwoo) | Andrew Choi |
"K-POP STAR S2" 3rd place, music provider (NCT, SHINee)
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| Abi | NECKWAV |
R&B/soul singer to debut in 2021
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| Baby | Danny Chung |
Lyricist for BLACKPINK, affiliated with THE BLACK LABEL
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| Mystery | Kevin Woo |
Former U-KISS main vocalist, currently working solo
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| Romance | samUIL Lee |
Producer of songs by RIIZE and NCT DREAM
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⭐Additional Information Danny Chung is the only member who is both a voice actor and a singer.
3. Each character: Complete guide to voice acting, singing, and character settings
🔥Jinwoo
▪️Role: Leader, Center
▪️Voice actors: Ahn Hyo-seop (Korea), Kaito Ishikawa (Japan), Minami Seung-yu (Korea)
▪️Singing: Andrew Choi
▪️Character setting: A charismatic perfectionist leader who plays a central role in the story.
💡Andrew Choi is a talented artist who has written songs for Monsta X, NCT, SHINee, and more.
🌪 Abi
▪️ Role: Main dancer, sub-rapper
▪️Voice actors: Jo Seung-won, Lee Hyun
▪️Singing: NECKWAV
▪️Character: A cool and silent dancer with deep rap and a deep voice.
💡NECKWAV is a new female artist who is attracting attention for her unique worldview.
🎧Baby
▪️ Role: Youngest, main rapper
▪️Voice actor: Undisclosed (uncredited)
▪️Singing: Danny Chung
▪️Character setting: She looks cute, but her voice is manly, which is a cute contrast.
💡Danny Chung writes lyrics for YG artists such as BLACKPINK and SOMI.
🎭 Mystery
▪️Role: Lead vocalist
▪️Voice actors: Alan Lee, Lim Chae Bin
▪️Singing: Kevin Woo (U-KISS)
▪️Character setting: A mysterious person with a secret from his past.
💡Kevin has also made inroads on Broadway in recent years. He is a truly talented performer.
💘 Romance
▪️Role: Sub-vocalist
▪️Voice actors: Joel Kim Booster, Choi Hyun-sik
▪️Vocals: samUIL Lee
▪️Character setting: Many fans are hooked by the sweet lines and visuals.
💡samUIL Lee is known as the producer for RIIZE, NCT DREAM, and others.
4. The production team and cast are amazing!
The members involved in creating and producing the songs for this album are a stellar lineup currently active at the forefront of the K-POP world.
🎵Andrew Choi: Has provided songs for BoA, SHINee, EXO, and more
🎧NECKWAV: A rising star in the Korean R&B scene. Popular among subcultural girls.
🎤Kevin Woo: Active around the world as an idol, actor, and stage actor.
✍️Danny Chung: A bilingual rapper who is fluent in both English and Korean.
🛠samUIL Lee: A talented producer who has collaborated with SM Entertainment on numerous occasions.
5. Social Media Reactions
See how viewers reacted:
👤 "I wondered who this voice was, and it was Andrew Choi! What a surprise!"
👤 "NECKWAV's voice is so piercing that I've become a big Abby fan."
👤 "Kevin Woo from U-KISS?! I remember him so well and he's so good."
👤 "Isn't it okay for Danny Chung to be a real idol now?"
Comments are buzzing on Twitter (X), YouTube, and Instagram with the tags "#사자보이즈" and "#KPOPDEMONHUNTERS."
6. Are the Saja Boys real?
In conclusion, "Saja Boys" is a fictional group. However, because the singing and acting are done by real people involved in K-POP, they have the same level of perfection and influence as a real group.
The OST, which has been released on Spotify and YouTube, has already been played hundreds of thousands of times, making it truly a work that transcends the boundaries between fiction and reality.
7. Frequently Asked Questions (Q&A)
Q. Where can I listen to Saja Boys music?
A. It is currently being distributed on Netflix's official YouTube channel, Spotify, etc. There are no plans to release it on CD yet.
Q. Are the singing voice and the voice actor different people?
A. In most cases it's different people. However, Baby is the same person (Danny Chung).
Q. Are there really K-pop artists involved?
A. Yes, all the singing cast members are professional K-POP artists/composers/voice actors.
8. Summary
The appeal of Saja Boys is not just that they are a "bad boy band." They are the ultimate "virtual K-POP group," brought to life by top artists from the real world.
If they were real, they would have dominated the Billboard charts. When you watch "KPOP Demon Hunters," be sure to listen to their "singing voices."
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