Who Is Park Hae-lin, the Outgoing Game Changer from 'Single's Inferno' Season 4?
The rising actress arrived on the Netflix reality show midway through the season and is already one-to-watch.

Most reality TV fans are familiar with the game changer: a contestant who arrives partway through the season to shake up the competition. In season 4 of Single's Inferno, Netflix's hit Korean dating show, Park Hae-lin, with her bubbly, outgoing personality quickly, changes the Inferno's mood. Fans are now curious about the newcomer, especially as her interest in two of the men is guaranteed to put her at odds with the other singles looking for love.
Like fellow season 4 standouts Yuk Jun-seo and Lee Si-an, Hae-lin already had a background in the Korean entertainment industry before her Netflix debut. Below, read on for everything we know about the new addition to Single's Inferno's season 4 cast, Park Hae-lin.
Park Hae-lin is a college student studying acting.
Park Hae-lin, 24, is a college student studying film arts at Sejong University in Seoul. She specializes in acting and, i n her Single's Inferno intro, Hae-lin says she enjoys learning about classic literature and unique characters from the different texts.
According to her Instagram bio, she is signed to the entertainment agency WNY, which also manages actresses Oh Yoo-jin, Han Ji-min, and Lee Soo-jung.
A post shared by 박해린 HAE LIN (@qkrgofls)
A photo posted by on
She made her K-drama debut last year.
In 2024, Hae-lin made her acting debut in the K-drama Tarot, in which she played a snack bar owner named Mingu. The Korean thriller about cursed tarot cards (unrelated to the U.S. horror movie) held a Single's Inferno connection, as it also served as host Dex's scripted TV debut.
In December 2024, she also appeared in the romance K-drama When the Silver Bell Rings, which followed the love stories of four seniors. She played the younger version of one of the main characters, Soo-hyang (played as an older woman by Ye Soo-jung).
A post shared by 박해린 HAE LIN (@qkrgofls)
A photo posted by on
She's a former K-pop trainee who competed on a survival show.
Hae-lin is another member of the season 4 cast who dreamed of being a K-pop idol before entering her current career. Over her time as a trainee, Hae-lin trained under the agencies JYP Entertainment, PlayM Entertainment, and MNH Entertainment. She also competed on the 2017 survival show MIXNINE, where she was eliminated in the 10th episode and ranked at 35th out of 98 female trainees.
Stay In The Know
Get exclusive access to fashion and beauty trends, hot-off-the-press celebrity news, and more.
Like Lee Si-an, Hae-lin came quite close to debuting. Under PlayM Entertainment, she was named as a member of FAVE GIRLS, the pre-debut girl group that would eventually become Weeekly. Hae-lin left the company in July 2019 to pursue her studies. During a February 2020 appearance on the variety show I Can See Your Voice, she confirmed that she was no longer interested in becoming an idol.
Quinci is a Culture Writer who covers all aspects of pop culture, including TV, movies, music, books, and theater. She contributes interviews with talent, as well as SEO content, features, and trend stories. She fell in love with storytelling at a young age, and eventually discovered her love for cultural criticism and amplifying awareness for underrepresented storytellers across the arts. She previously served as a weekend editor for Harper’s Bazaar, where she covered breaking news and live events for the brand’s website, and helped run the brand’s social media platforms, including Instagram, Facebook, and Twitter. Her freelance writing has also appeared in outlets including HuffPost, The A.V. Club, Elle, Vulture, Salon, Teen Vogue, and others. Quinci earned her degree in English and Psychology from The University of New Mexico. She was a 2021 Eugene O’Neill Critics Institute fellow, and she is a member of the Television Critics Association. She is currently based in her hometown of Los Angeles. When she isn't writing or checking Twitter way too often, you can find her studying Korean while watching the latest K-drama, recommending her favorite shows and films to family and friends, or giving a concert performance while sitting in L.A. traffic.
-
I Need All of My Lip Products to Come With a Donut Applicator From Now On
I put four viral tinted serums to the test.
By Brooke Knappenberger Published
-
Princess Margaret's "Ill-Mannered" Comments to Queen Elizabeth and Queen Mother Often Had "Courtiers Shaking Their Heads"
The late royal was known for her one-liners.
By Kristin Contino Published
-
How Prince Archie Has Been Learning About His Grandma Princess Diana's Charity Work
Prince Harry shared that his 5-year-old son has become curious about one particular topic.
By Kristin Contino Published
-
The Best TV Friendships of All Time
From Issa and Molly to Cristina and Meredith.
By Katherine J. Igoe Published
-
'Sweet Magnolias' Season 5: Everything We Know
We're dying to know if Maddie is leaving Serenity!
By Radhika Menon Published
-
What to Know About Milla Blake of 'Apple Cider Vinegar,' and the Real-Life Influencer Who Inspired the Character
The self-nicknamed "wellness warrior" treated her illness through alternative means.
By Quinci LeGardye Published
-
Carrie Preston Can't Get Enough of Elsbeth's Feel-Good Attitude Either
The star of the hit CBS series opens up about the network TV revival and the mysteries still to come in season 2.
By Radhika Menon Published
-
'The Trauma Code: Heroes on Call' Season 2: Everything We Know
Fans hope we haven't seen the last of Hankuk University Hospital.
By Quinci LeGardye Published
-
'The Recruit' Season 3: Everything We Know
Here's where the Noah Centineo-led Netflix thriller could go after season 2's twist-filled ending.
By Quinci LeGardye Last updated
-
Meet the Cast of 'The Recruit' Season 2
Heartthrobs Noah Centineo and Teo Yoo lead season 2 of Netflix's hit espionage series.
By Quinci LeGardye Published
-
Meet the Cast of 'The Trauma Code: Heroes on Call'
The series follows the inner workings of Hankuk National University Hospital, with several A-listers rounding out the ensemble.
By Quinci LeGardye Published