YooA and Arin Trade Music for Movie Sets: Oh My Girl Members’ Acting Debuts
The mid-to-late 2010s were a golden era for K-pop girl groups, a “third generation” that included iconic acts like Blackpink, Twice, Red Velvet, and countless others.
Oh My Girl, while not always in the spotlight’s brightest glare, undeniably left their mark on the K-pop scene.
Hailing from the smaller agency WM Entertainment, the group cultivated a dedicated fanbase with their dreamy, experimental concepts and genuinely creative tracks. They proved their staying power, becoming a true success story with “Nonstop” and the viral B-side “Dolphin” in 2020, five years after their debut.
Currently consisting of six members, Oh My Girl saw YooA and Arin depart from WM Entertainment last year. Both signed with new agencies, pivoting towards acting careers while remaining open to future group activities.
Exciting news for fans: Both YooA and Arin have successfully transitioned to the big screen!
Arin’s film debut is slated for March 4th with “Mad Dance Office,” a comedy featuring Yeom Hye-ran (from “No Other Choice”) as a meticulous civil servant who unexpectedly discovers a passion for dance.
Arin plays her daughter, weary of her mother’s overbearing nature and determined to take a stand.

This role is a natural progression for the 26-year-old, who has steadily built her acting resume in recent years. Her supporting role in tvN’s 2022 fantasy hit “Alchemy of Souls,” available on Netflix, spanned 30 episodes alongside Go Youn-jung and Jung So-min. This was followed by leading roles in last year’s webtoon adaptation “S Line,” a thriller, and the romance “My Girlfriend Is a Real Man.”
YooA, on the other hand, made her screen debut last month in the neo-noir heist film “Project Y.” The film stars Han So-hee and Jeon Jong-seo as two women entangled in Seoul’s criminal underbelly, who steal a stash of black-market gold and spend the film’s duration fleeing the pursuing gangsters.

YooA’s portrayal of a crime boss’s ditsy wife is entertaining, although brief. Her character, Ha-kyung, frequents bars, drunkenly insults strangers, and meets an unfortunate end before viewers truly get to know her. To her credit, YooA convincingly sheds her bubbly idol persona and fully embraces the grittiness of the role.
However, “Project Y” itself experienced a disappointing run. Despite its star-studded cast and initial positive reception at the Toronto International Film Festival, the film barely exceeded 100,000 admissions before being released on streaming platforms just two weeks after its theatrical premiere, an unusually short window in today’s industry.
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