Single’s Inferno 4 cast: A look at their past activities

Netflix's Single's Inferno returns for its fourth season, bringing more drama and romance. The show features a group of singles on a remote island, "Inferno," where they face challenges, form connections, and compete for a chance to escape to the luxurious "Paradise" hotel.

The hosts include model Hong Jin-kyung, actress Lee Da-hee, Super Junior's Kyuhyun, rapper Hanhae, and YouTuber Dex, a fan-favorite from season 2.

Guided by this stellar panel of hosts, Single’s Inferno has captured global attention for its unique format and compelling cast. With contestants vying to find their perfect match and secure a night of comfort and intimacy, the show has become a cultural phenomenon.

As fans dive into the latest season, here is a closer look as the cast of Single’s Inferno 4 reveals the past activities that brought them to this fiery dating adventure.

13 contestants of Single’s Inferno season 4: Talents, achievements, and more

The highly anticipated fourth season of Single’s Inferno introduces 13 contestants with diverse talents and intriguing backgrounds. Here’s an in-depth look at their past accomplishments and experiences, presented in alphabetical order:

1) An Jong-hoon

Single’s Inferno 4's contestant An Jong-hoon (Image via Netflix)

An Jong-hoon, 32, also an entrepreneur, owns two popular dining spots in Seoul—Hwaju Ywojung and MiraeHall Apgujeong. The restaurants are a fusion of Japanese and Hong Kong cuisine bars. He is also a bodybuilder who has competed in several competitions.

2) Bae Ji-yeon

Bae Ji-yeon, 26, is a model and "space director" who is passionate about fitness and horseback riding. She began her career with an appearance in Korean singer Jaeha’s music video Hidden Catch and has modelled for several Korean brands.

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3) Chung You-jin

Chung You-jin, 28, is a professional dancer pursuing a master’s degree in traditional Korean and contemporary dance at Ewha Womans University. She’s a member of Homo Nomad dance company and also teaches dance classes. Outside of dance, she enjoys freediving, likening the experience to feeling like a mermaid. You-jin has also appeared on varity show 2 Days 1 Night.

4) Kim A-rin

Single’s Inferno 4's contestant Kim A-rin (Image via Netflix)

At 25, Kim A-rin has made a name for herself as a model and successful YouTuber, sharing beauty, fashion, and lifestyle content.

5) Kim Hye-jin

Kim Hye-jin, 27, is a model and former idol trainee with experience in K-pop training. She has worked on beauty and fashion advertisements, including a two-year collaboration with an eyewear brand. In 2020, she won the Miss Korea pageant, gaining recognition in both the modeling and pageant industries.

6) Kim Jeong-su

Kim Jeong-su, 33, is an entrepreneur who owns five popular cafes and bakeries, including Haerye Coffee cafe in Seoul.

7) Kim Min-seol

Kim Min-seol, 22, rose to national recognition after winning the 91st Miss Chunhyang Jin beauty pageant. A graduate of the Seoul National Institute for the Arts, she has worked as a reporter for SPOTV.

8) Kim Tae-hwan

Single’s Inferno 4's contestant Kim Tae-hwan (Image via Netflix)

Kim Tae-hwan, 32, is a multifaceted talent—actor, model, and DJ. He gained fame for his role in the Chinese drama My Amazing Boyfriend and appeared in The Bride of Habaek and Love Class. Tae-hwan is also a regular face in top fashion magazines like GQ Korea and Esquire Korea.

9) Kook Dong-ho

Kook Dong-ho, a 30-year-old certified public accountant (CPA) and graduate of Korea University, works at one of Korea's top accounting firms. Specializing in financial advisory services, he handles a variety of tasks, including investment fundraising, valuation analysis, and due diligence.

10) Lee Si-an

At 25, Lee Si-an is a freelance model known for her athletic build and cat-like eyes. She competed in Idol School (2017) and Produce 48 (2018) and was part of the pre-debut girl group Happyface Girls. A former competitive swimmer, she now enjoys swimming as a hobby.

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11) Park Hae-lin

Park Hae-lin, 25, is an actress and former idol trainee who trained under JYP Entertainment, MNH Entertainment, and Play M Entertainment. She competed on Mixnine (2017) and appeared in the film Tarot (2024) and the LG U+ drama When the Silver Bell Rings (2024). Now pursuing a degree in Film Arts at Sejong University, she’s shifted her focus to acting.

12) Theo Jang (Jang Tae-oh)

At 29, Theo Jang is an actor recognized for his role in Malaysia’s anti-scam film Oppa (2024) earning him the Best Foreign Language Film Actor award at the Asia International Film Festival in 2024. His K-drama appearances include The King of Tears: Lee Bang Won (2022), A Man in a Veil (2020-2021), and Miss Independent Ji-eun (2019).

13) Yuk Jun-seo

Yuk Jun-seo, 28, transitioned from a military career as a UDT/SEAL officer to the entertainment world. He gained fame through the military survival show The Iron Squad aka Steel Troops (2021-2024) and acted in seasons 2 and 3 of Sweet Home (2020-2024). An artist, Jun-seo recently held his first solo exhibition, "Cranium," at the Geumho Albert cultural space in Seoul.

Single’s Inferno season 4 features 12 episodes, with the first six already streaming on Netflix. New episodes release in pairs every Tuesday, building anticipation for the next developments. The next two episodes of Single’s Inferno, 11 and 12, will premiere on January 28.

Edited by Divya Singh