Kim Jong Yoon

Kim Jong Yoon is a South Korean actor known for steady supporting and guest roles that make every drama feel more real. Comedy fans know him best as Seong Bin in Welcome to Waikiki (2018), where he appeared across the full 20-episode run of the hit guesthouse sitcom.

Early life

Kim Jong Yoon was born on December 10, 1990, in South Korea. He keeps his private life out of the spotlight, and not much is shared about his family or school years. Like many character actors, he built his career slowly, taking small parts in television dramas and learning from every set he worked on.

Career and breakthrough

In 2017, he played the young Nam Sang-tae in the crime thriller Voice, and he also picked up small roles in Black and Bad Guys: Vile City. These early parts showed his range, from serious crime stories to dark fantasy. His warm, natural style soon made him a good fit for comedy as well.

Popular roles

His best-known role is Seong Bin in Welcome to Waikiki (2018), the much-loved sitcom about three friends running a failing guesthouse in Seoul. While the main cast chased their dreams, Seong Bin added colour and humour around them for all 20 episodes. In the same year, he took a leading role as Tae-woo in the web drama Wish Woosh, which showed he could carry a romantic story too.

Recent work and why fans love them

More recently, Kim Jong Yoon played Lee Jae-ho in Shadow Detective (2022), and he made guest appearances in The Midnight Studio (2024) and Dog Knows Everything (2024). Fans enjoy him because he never overacts. He feels like a real person you might meet, and that quiet skill keeps casting directors calling him back.