The All-Star Cast Of KPop Demon Hunters: Meet The Voice Actors Behind Huntrix And The Saja Boys

The global phenomenon of KPop Demon Hunters continues to dominate streaming charts well into late 2025, following its massively successful Netflix debut on June 20, 2025. This animated feature from Sony Pictures Animation has captivated audiences with its vibrant blend of high-energy K-pop choreography and supernatural action, cementing its status as a breakthrough hit. The film’s core appeal lies not just in its dazzling premise—a world-renowned K-pop girl group secretly battling demons—but in the powerhouse ensemble of voice actors who bring the characters to life, mixing established Hollywood stars with top-tier talent from the Korean entertainment industry.

The stellar voice cast is the true heart of the film, featuring a diverse group of actors, singers, and models who lend their voices to the K-pop girl group Huntrix and their demon rivals, the Saja Boys. From the lead vocalist Rumi to the ruthless Demon King Gwi-ma, here is the full breakdown of the main cast and the talented individuals who have made this animated blockbuster a worldwide cultural moment, with a sequel already confirmed for a reported 2029 release.

The Core Cast: Huntrix, Saja Boys, and the Demon King

The success of KPop Demon Hunters is intrinsically linked to the star power and vocal chemistry of its main cast. The film centers on the three members of the K-pop group Huntrix—Rumi, Mira, and Zoey—who are tasked with protecting their fans from an ancient evil. Their primary antagonist is the rival boy band, the Saja Boys, who are secretly a legion of demons sent by the Demon King Gwi-ma.

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Arden Cho as Rumi (Huntrix Lead Vocalist)

• Role in Film: Rumi, the fierce and determined lead vocalist of the K-pop group Huntrix.
• Biography Snapshot: Born on August 16, 1985, Arden Cho is an American actress, singer, and model.
• Career Highlights: She is best known for her role as Kira Yukimura in the MTV series *Teen Wolf*. More recently, she starred as Ingrid Yun in the Netflix series *Partner Track*, showcasing her versatility across genres.
• K-Pop Connection: While primarily an actress, Cho is also a singer and model, bringing a deep understanding of the entertainment world to her animated K-pop idol role.

May Hong as Mira (Huntrix Member)

• Role in Film: Mira, one of the three core members of the demon-hunting K-pop sensation, Huntrix.
• Biography Snapshot: Hong is an American actress and artist, born in South Korea before immigrating to the United States at age six.
• Career Highlights: She has appeared in notable television series such as *High Maintenance*, the HBO Max comedy *Hacks*, and the Netflix series *Tales of the City*.
• Fashion & Art: Beyond acting, Hong has a background in modeling, having walked runways for major brands like Marc Jacobs and Gucci.

Ji-young Yoo as Zoey (Huntrix Member)

• Role in Film: Zoey, the third member of Huntrix, who uses her secret identity to battle supernatural forces.
• Biography Snapshot: Born on September 25, 2000, in Denver, Colorado, Ji-young Yoo is an acclaimed emerging American actress.
• Career Highlights: She gained critical recognition for her award-winning performance in the film *Smoking Tigers* and has appeared in the Amazon Prime mini-series *Expats*.
• Impact: Her voice role in *KPop Demon Hunters* is part of a breakout period in her career, further establishing her as a rising star.

Ahn Hyo-seop as Jinu (Saja Boys Member)

• Role in Film: Jinu, a member of the rival boy band Saja Boys, who are secretly demons. This was his first English voiceover role.
• Biography Snapshot: Ahn Hyo-seop (Paul Ahn) is a South Korean and Canadian actor and singer, born on April 17, 1995.
• Career Highlights: He is a major star in the Korean drama world, known for leading roles in hit series like *Business Proposal*, *Dr. Romantic*, and *A Time Called You*.
• K-Pop Connection: Ahn Hyo-seop debuted as a singer in 2015 with the group One O One, making him a perfect fit to voice a K-pop idol.

Lee Byung-hun as Gwi-ma (The Demon King)

• Role in Film: Gwi-ma, the ruthless and manipulative Demon King who sends his minions to Earth to steal human souls.
• Biography Snapshot: Lee Byung-hun, born July 12, 1970, is one of South Korea's most internationally recognized actors.
• Career Highlights: His filmography includes blockbusters like *Joint Security Area*, *I Saw the Devil*, and global Hollywood roles such as the T-1000 in *Terminator Genisys* and The Front Man in the Netflix smash hit *Squid Game*.

The Full Lineup: Saja Boys and Supporting Voices

The world of KPop Demon Hunters is populated by an extensive cast of characters, ensuring a rich narrative and high-octane musical numbers. The full cast list includes a blend of voice actors, singers, and comedians, adding layers of authenticity and humor to the animated feature.

The Saja Boys: The Demon Boy Band

The Saja Boys are the primary antagonists, a rival K-pop boy band whose members are actually demons. To create a believable K-pop sound, the production team utilized separate voice actors for the speaking roles and professional K-pop singers for the musical performances, a common practice in animated musicals.

• Jinu: Voiced by Ahn Hyo-seop (speaking).
• Mystery Saja: Voiced by Alan Lee (speaking). Lee also voices a pilot demon and a variety show host in the film.
• Romance Saja: Singing voice provided by SamUIL Lee.
• Abby Saja: Singing voice provided by Neckwav.
• Vocal Power: The real-life K-pop idol Kevin Woo (formerly of the group U-KISS) provided some of the real singing voices for the Saja Boys, lending true K-pop star power to the demon group's musical numbers.

Notable Supporting Voice Actors

The film boasts a deep bench of talent, ensuring every character, no matter how small, is memorable. These actors contribute significantly to the film's topical authority and comedic timing:

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• Joel Kim Booster: The stand-up comedian and actor, known for *Fire Island*, lends his voice to a supporting character, adding a layer of comedic relief.
• Andrew Choi: A singer and songwriter, Choi is part of the ensemble that brings the K-pop world to life.
• Sungwon Cho: Also known as ProZD, a popular voice actor and content creator, he contributes to the Saja Boys' ensemble.
• Audrey Nuna: The American singer and rapper was also part of the all-star voice cast, further blending the worlds of music and acting.

The Cultural Impact and Legacy of the KPop Demon Hunters Cast

The casting strategy for KPop Demon Hunters was a masterstroke, directly contributing to its phenomenal success and cultural resonance. By deliberately choosing a cast of predominantly Korean-American and Korean-Canadian actors (Arden Cho, May Hong, Ji-young Yoo) alongside major South Korean stars (Ahn Hyo-seop, Lee Byung-hun), the film successfully bridged the gap between Hollywood animation and the global K-culture phenomenon.

The film’s focus on the Huntrix members—Rumi, Mira, and Zoey—as strong, multi-faceted female leads resonated deeply with audiences. The voice actors, all of whom are of Korean descent, have spoken about the project's significance in representing the Korean diaspora experience on a global stage.

As the film shattered Netflix viewing records, becoming one of the streamer's most-viewed films of all time, the cast became a symbol of this cultural fusion. The critical acclaim and commercial success have not only validated the unique premise but have also led to immediate discussions about the already-confirmed sequel, KPop Demon Hunters 2, which is reportedly aiming for a 2029 release. Fans eagerly anticipate the return of the core cast—Arden Cho, May Hong, and Ji-young Yoo—to reprise their roles as the demon-slaying K-pop idols.

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The legacy of this cast is that they successfully delivered a film that is both a love letter to K-pop and a thrilling action-fantasy, proving that diverse, culturally specific storytelling can achieve universal appeal. The combination of established drama veterans, rising stars, and genuine K-pop singers created a dynamic experience that continues to inspire excitement worldwide.