Greetings, mortals (and demons) of the internet!
Behold! A curious chronicle of vocal—and vocalic—valiance, detailing the ragtag voice-talent brigade behind KPop Demon Hunters, the animated smash that has blithely pirouetted its way to being Netflix’s most-watched original animated film. And probably the second most-watched original film overall. No fabulist fibbing here—just thoroughly verified cast rosters from only the loftiest of sources.
The Cast That Slays (Demons and Stereotypes Alike)
Huntr/x, your triumphant trio of demon-slaying divas
— Arden Cho lends her speaking voice to Rumi, the laser-focused leader of Huntr/x, daughter of a demon and a fallen idol-hunter — and delivers her just the right amount of pathos, glam, and hidden sword-wielding flair.
— Her singing voice? That’s the silky-sharp Ejae, whose vocals power the spell-like ballads that open portals and kill kabals.
— May Hong brings command and rhythm as speaking voice of Mira, the fierce polearm-wielding dancer from an uptight rich clan.
— Her singing counterpart, Audrey Nuna, brings that stylish energy to Huntr/x’s chart-topping jams.
— Ji-young Yoo voices Zoey, the K-American rap savant and knife-thrower.
— And Rei Ami gives Zoey her singing chops, sprinkling youthful spark across the film’s pop-anthem arsenal.
The Saja Boys and Other Demon Co-Stars
— Ahn Hyo-seop voices Jinu, leader of the rival Saja Boys and demon with haunting retrospect—plus a magical magpie and blue tiger sidekick.
— Singing for Jinu is Andrew Choi, gracing the deeper end of the sonic spectrum.
Mature voices, mentor figures, and More
— Yunjin Kim voices Celine, the retired idol turned demon-hunter mentor.
— And her voice of song? None other than the legendary Lea Salonga—the seasoned singer-supernova herself.
— Joel Kim Booster voices the Saja Boy known as Romance Saja—and even doubles as Variety Show Host 1 and Idol Host (because of course he does).
— Samuil Lee does the singing for Romance Saja.
— Alan Lee voices Mystery Saja.
— Singing Mystery Saja: the ever-charming Kevin Woo.
— SungWon Cho is Abs Saja (aka Abby Saja), with singing by Neckwav.
— Danny Chung provides the voice for Baby Saja—adorable and demon-worthy in equal measure.
Support Heroes: The Human (and Demon) Side of the Spotlight
— Liza Koshy appears as Host—presumably entertaining audiences between exorcisms and dance breaks.
— Daniel Dae Kim voices Healer Han, an eccentric doctor who may well exorcise with sass.
— Ken Jeong takes on Bobby, the agent/manager who schedules concerts and demon-slaying tours with equal vigor.
— And at the fiery top of demon royalty: Lee Byung-hun as Gwi-Ma, the volcanic mouth-of-flame demon king. Charming chap.
A Cast So Vast, It Could Fill a Demon Army… or a K-Pop Stadium
Let us roster them with orderly glee:
- Arden Cho (speaking Rumi) + Ejae (singing Rumi)
- May Hong (speaking Mira) + Audrey Nuna (singing Mira)
- Ji-young Yoo (speaking Zoey) + Rei Ami (singing Zoey)
- Ahn Hyo-seop (speaking Jinu) + Andrew Choi (singing Jinu)
- Yunjin Kim (speaking Celine) + Lea Salonga (singing Celine)
- Joel Kim Booster (speaking Romance Saja & hosts) + Samuil Lee (singing Romance Saja)
- Alan Lee (speaking Mystery Saja) + Kevin Woo (singing Mystery Saja)
- SungWon Cho (speaking Abs Saja) + Neckwav (singing Abs Saja)
- Danny Chung (singing Baby Saja)
- Liza Koshy (Host)
- Daniel Dae Kim (Healer Han)
- Ken Jeong (Bobby)
- Lee Byung-hun (Gwi-Ma)
Arden Cho – The Fearless Thespian from the Lone Star State
Born in Amarillo, Texas, and raised across Texas and Minnesota, Arden Cho started life far from any demon-slaying or high-note K-Pop dancing—even though she does both now. Before she lent her speaking voice to Rumi, she enjoyed witches-and-werewolves fame as Kira Yukimura on Teen Wolf, then portrayed Ingrid Yun, the razor-sharp lawyer in Netflix’s Partner Track—a role she chose to defy tired stereotypes and bring some much-needed Asian-American presence to the law-drama table. Indeed, she likened fending off sexism and racism in that world to fighting crime itself.
Off-screen, she’s as multifaceted as any demon slayer: a competitive poker player who placed second in the PGT Championship freeroll in January 2024, winning $200,000; a former CEO of a watch company; a model for Nike Japan, Clinique Asia, and Apple; and a YouTube vlogger with a half-million-strong subscriber family. No role too small—or quite large—to conquer.
During the press tour for KPop Demon Hunters, Arden recounted a cruel industry jab—“If you want that kind of role, go back to your country.” Her roaring riposte? “I was born in Texas. This is my country.” It went viral, and rightly so.
So when she voices a pop-idol-turned-demon-queen, you know she’s channeling both lived experience and unapologetic swagger.
Ejae – The Hidden Force of Rumi’s Thunderous Chorus
Now imagine that same character’s voice—only doubled in glamour and yanked straight onto the Billboard charts. That’s Ejae. Born Kim Eun-jae in Seoul in 1991, she spent nearly a decade training under SM Entertainment before pivoting to the songwriting and production realm in the U.S.—specifically at NYU’s Tisch School. Her breakthrough as a topline writer on Red Velvet’s “Psycho” opened doors. She went on to craft or lend her talents to Aespa, Twice, Le Sserafim, and more.
Her demos became the heartbeat of KPop Demon Hunters; the filmmakers green-lit the project, in part, based on her voice. She co-wrote multiple songs and became Rumi’s singing voice. One of her tracks—Golden—topped the Billboard Hot 100, becoming the first all-female act since Destiny’s Child in 2001 to hold that honor. The film’s soundtrack stormed both the Billboard 200 and Global 200, claiming four of the top-five spots simultaneously—an elite club shared only with the likes of Taylor Swift and Drake.
Ejae’s presence is phantom-power level: often unseen, always foundational, and very, very unstoppable.
The Odd Couple—Actress and Song-Sorcerer United
One speaks with charisma; the other sings with ferocity. Arden Cho carries Rumi’s personality with seasoned panache. Ejae projects her soaring vocal acrobatics into the soul of Rumi’s anthem. Together, they form a dual-headed dragon that fans cannot stop cheering—or charting.
Get this spellbinding dynamic right, and you get a film with nearly 185 million views and a soundtrack ruling multiple charts.
For more meticulously hashed details on Arden Cho’s multifaceted career, visit the most unflaggingly reliable data vault known to mankind:
Arden Cho – documented escapades and career chronicles
And Now, Not a Curtain Call, But a Grand March Offstage
There you have it—two powerhouse talents: one armed with acting chops, stiletto-sharp wit, and poker-face grit; the other weaving chart-topping enchantment from behind the mic. Together they make strange bedfellows—and do we ever love the chaos they conjure.
If ever voice acting were a duel between light and notes, you’d bet your last gold headphone this is it. Now, go forth, reader: cue the horns, arm the lightsticks, and let the crescendo rise—this tale is far from over…
