It All Came Down to the Audition
In the end, it came down to an audition. Whether that counted as a blessing or a curse, no one could say.
LiveOn, true to form, had put forward the withdrawal of Jung Ga-yoon's casting as their condition. But Writer Yang, after watching the video Ga-yoon had sent, found himself unable to give her up and chose NetPlay instead—declaring he was willing to simply live with a mismatch in working styles. That was where the trouble began.
"In my view, So Yul-hee is the perfect fit for the role."
NetPlay had accepted Writer Yang Bo-hyeon's casting choice, but Director Park Hae-gang, slated to direct Whistle, had objected. He showed the script to the actress he had in mind—So Yul-hee.
So Yul-hee was an actress in her early thirties who had made her name in romantic comedy, but lately the film world had recognized her acting back to back: first as a charismatic detective, then as a skin-crawling villain in a Japanese colonial-era picture.
Having read the Whistle script, she made it known that she was dying to play this villain. And when neither Park Hae-gang nor Yang Bo-hyeon would yield an inch, Butterfly—NetPlay's in-house production company—proposed an audition. So here they were.
"Hello, sunbae."
"Oh. Right. Hello."
So Yul-hee, thirteen years into her career, could hardly believe that this actress—six whole years her junior—had won Writer Yang's stamp of approval.
Perhaps Choi Mi-so, the villain of Whistle, did suit this woman's 'image.' Writer Yang had sketched Mi-so's outward appearance in the synopsis, and it matched her closely.
But could she truly bring out what lay inside Choi Mi-so? It wasn't that So Yul-hee looked down on Jung Ga-yoon. She had seen Conditions of Inheritance, and Ga-yoon's earlier work as well.
"You're a good actress, you know that?"
"Thank you for the generous assessment, sunbae."
"That's right. I was generous. Very generous."
Script in hand, So Yul-hee only turned her eyes to study Ga-yoon. A senior with years on you turning subtly hostile—most people would have been thrown off balance. This one looked remarkably composed.
Hmph. Good at keeping a poker face, but her stomach must be in knots by now.
The corner of So Yul-hee's mouth twitched toward a smirk and stopped there; she turned her eyes back to the script and focused. Villain roles, for Jung Ga-yoon, began and ended with Conditions of Inheritance. The petty antagonist who tripped up the heroine in a romance drama could never carry this part.
"That's right. I was generous. Very generous."
Ga-yoon felt the sincerity beneath So Yul-hee's words—the sincerity of a rival resolved never to be generous when it came to taking this role for herself. The remark had likely been produced on purpose, just to rattle her. If anything, it made her look forward to the audition.
She had found So Yul-hee's recent work genuinely fascinating to watch. Here was an actress who had done nothing but cute, comic romance, only to upend every expectation and satisfy the public's demands with aplomb. Transformation after transformation had proven it was no fluke but real skill. If she pulled off Choi Mi-so in Whistle, no one would be able to dispute that she was a true actor, not merely a star. All the more reason she would pour her whole heart into this audition. The only regret was that she, a mere contestant, wouldn't get to watch So Yul-hee perform.
"Ms. So Yul-hee? You're up now. Please head in."
First in line, So Yul-hee entered the audition room ahead of her. Ga-yoon swallowed her disappointment as she watched her go.
Jung Ga-yoon loved acting. The first time she grasped 'actor' as a profession, she was in the fifth grade, on a school field trip to see a play in one of Daehangno's small theaters. In that dark, cramped space, a story she had known only as a fairy tale stood up and breathed. The actors' movements, the light in their eyes, the sound of their breath, the tension wound through every scene—she could not forget it. From that day on, the dramas her mother watched and the films on the cable channels looked entirely different to her.
After that, she devoured dramas, films, and stage plays in every spare moment, and the day she started middle school and heard there was a theater club, she went straight to it. Just as she had hoped, 'acting' was a bewitching act indeed. A staggering undertaking, in which one human being could pour out every emotion she possessed, nothing held back. To be able to pin a name on every feeling she had—that alone made her life richer. And she was intoxicated by the discovery that emotions she had never dared show her widowed mother—the woman who had thrown away so much to raise her—could be dredged up, turned over, chewed on, and finally released in their rawest, most honest form.
No wonder she excelled at breaking down a role. She delighted in studying a character by every method she could devise, without rest, minute after minute, until she knew it inside and out.
"Ms. Jung Ga-yoon."
The audition staff member called her name, sounding almost sorry for her. So Yul-hee was coming out with a smile on her face, evidently satisfied with how her audition had gone. Staff and senior alike had already cast Jung Ga-yoon as the loser. Before the results were even in. A shame, really.
At that very moment, Ga-yoon let her posture slump into something insolent—and whistled.
Fweet, fweee-eeet!
Launching into a performance before she had even stepped inside the audition room—an act of sheer outrage one might as well package as the audacity of an unknown actress.
She intended to give everything she had, so completely that even if she failed this audition and moved one step closer to death, she would have no regrets.
Uncrossing her legs, she rose, hooked her hands loosely behind her back, and walked into the audition room. So Yul-hee, halfway out, felt her face harden into something frightening, and turned her whole body to follow the back of the woman passing her by.
…
"Wow."
At the explosive energy pouring off Jung Ga-yoon, the Whistle staff and So Yul-hee's manager gasped in spite of themselves, instinctively smoothing down arms prickled with gooseflesh.
Fweet, fweee-eeet!
Seong Jin-ung, playing the protagonist of Whistle, felt the hair on his nape stand at the whistle drifting in from beyond the door. Ga-yoon entered with her hands clasped behind her back, her gaze blank to the point of sterility. Then, as her eyes made a slow circuit of the room, they quietly kindled for an instant—the look of a hunter that had found its prey.
Fweet!
Even that simple whistle was unmistakably a performance, feeling threaded through every note. It sounded like a summons to something—or like the whoop of delight at stumbling onto something fascinating.
And the crucial thing was this: with that one whistle, every judge who had watched So Yul-hee's performance with satisfaction swung their attention to Jung Ga-yoon in a heartbeat.
The audition script was short. A conversation with the protagonist, Detective Ha Ji-hyeok. Ga-yoon came forward in unhurried steps, as though she had spotted someone she knew—then stopped. A beat later, she thrust her face abruptly into the camera.
"Found it yet?"
Everyone watching the monitor feed flinched, shoulders jerking as though each of them, personally, had been the one questioned.
No staff member had been placed in the room to play her scene partner—a decision made at Writer Yang's insistence, so the judges could see exactly how far the actor had analyzed and inhabited her character.
Seong Jin-ung, glued to the monitor, looked up at Ga-yoon—and discovered she was already looking at him. Their eyes met. An actor with extraordinary focus. He caught himself cowering before that unblinking blankness. Even from far away, through a screen, the pressure came through.
To an audience that knew nothing, it would look like nothing more than an actress treating the camera as her scene partner. But to those watching who already knew she was the killer, the deranged curiosity glinting inside it landed with brutal clarity—like a question aimed straight at them from beyond the screen.
"I found it, though. The clue."
Her dry pink lips curled upward, sleek and deliberate. The killer's arrogance—if you can't find it, I'll drop you a hint—had morphed into the smile of someone who had just uncovered the crucial piece of evidence that would expose her sister's death. A shiver went around the room. Beside him, Writer Yang Bo-hyeon could be heard scribbling notes like a man possessed, as if seized by some sudden inspiration.
Seong Jin-ung was still reeling from the shock of it when Ga-yoon took up her next line.
"You're famous for catching even the killers behind unsolved cases, aren't you?"
To anyone watching Whistle for the first time, that glistening stare would read as fury at the killer; to anyone who knew Choi Mi-so's true identity, as someone savoring the thrill. It was a moment a first-time viewer and a rewatcher would feel in utterly different ways.
"I'll tell you everything—about the person who killed my sister."
She was beside herself with anticipation, dying to know just when Ha Ji-hyeok would finally catch on to who she really was.
"Please, you have to find them."
A line that came within a hair of outright deception—and she delivered it with devastating earnestness. The breath control alone was staggering. Her command over the audience's emotions from the far side of the lens, yanking them up and casting them down, was masterful. How on earth did anyone act so as to create that doubled feeling? Dazed, Seong Jin-ung could do nothing but watch, his mouth hanging slightly open.
"Shall we vote by a show of hands?"
There were five judges: Writer Yang Bo-hyeon; Director Park Hae-gang; the lead actor, Seong Jin-ung; and one representative each from the production company Butterfly and the OTT platform NetPlay. Yang Bo-hyeon and Seong Jin-ung, judging purely on the acting, chose Jung Ga-yoon. Butterfly and NetPlay agonized for a long while before raising their hands for So Yul-hee.
"Director Park hasn't raised his hand."
The representative from Butterfly arched an eyebrow at Director Park, as if sending a silent signal.