WithSingle’s Infernoseason 4 in full swing, Jang Theo is one of the season’s most interesting contestants; here’s what to know about his age, job, social media, and more. The reality dating show, which pairs hot young singles on “Hell Island,” is one of the most popular reality shows in South Korea. It’s also very popular in many other countries, including the UK and the US.
The show is addictive due to its compelling love stories and charismatic cast. TheSingle’s Infernoseason 4cast includes Theo, who made his premiere during the season’s first episode. Though he didn’t win one of the first dates to Paradise, hemade it there during the second episode. Read on to find out how old Theo is, what he does for work, and where he can be found on social media.
Single’s Inferno Season 4: Jang Theo’s Age
An Eccentric Personality
Theo is 29 years old, so he’s on the older side of theSingle’s Infernoseason 4 castmembers. He’s one of the more eccentric cast members and has a great sense of humor. Hedescribes himself as a “bulldozer” when it comes to love. During the season’s second episode, Theo paired with 25-year-old model Lee Si-an, and the two went to paradise together.
Single’s Inferno Season 4: Jang Theo’s Job
Award Winner
Like manySingle’s Infernocast members, Theo is in the performing arts. The actor started his career doing commercials butrecently won an international award for best actor for his role inOppa,a Malaysian film. In addition to being an actor, Theo is also a highly accomplished piano player. He hopes to meet the love of his life by the time theSingle’s Infernoseason 4 finalearrives.
Single’s Inferno Season 4: Jang Theo’s Instagram
@tachyonproject
Theo can be found on Instagram@tachyonproject, where he has amassed 703K followers. Theo was already matched with Si-an during one of the first pairing ceremonies. She had alreadybeen to paradise with 33-year-old business owner Kim Jeong-su, which lands Theo inan excitingSingle’s Infernolove triangle. WithSingle’s Infernoseason 4 in full swing, check back often for updates.
29 years old
Jang Theo’s Instagram
Single’s Infernoseason 4 premiered on August 07, 2025, on Netflix. New episodes are released on Tuesdays.
Single’s Inferno
Cast
Singles Inferno is a South Korean reality show where contestants are stranded on a deserted island in hopes of finding romance. Participants must complete daily challenges to earn opportunities for private dates, with the goal of coupling up and escaping the island. The show combines elements of survival and dating, under the watchful eyes of celebrity hosts who provide commentary and insights throughout the series.
