Lee Kwang-soo stands as one of South Korea's most versatile entertainers, having built a remarkable career as an actor, model, and variety show star. Born on July 14, 1985, he first captured public attention through his towering height and comedic timing, eventually becoming a household name across Asia. His journey from a budding model to a beloved figure in Korean entertainment is marked by both critical acclaim in dramatic roles and enduring popularity on television.

Lee Kwang-soo made his acting debut in 2008 with the sitcom Here He Comes, which introduced his natural flair for comedy. However, his career trajectory changed dramatically when he joined the cast of the variety show Running Man in June 2010. As a regular member for over a decade until his departure in May 2021, his last appearance aired on June 13, 2021, Lee became known for his "betrayal" character and unexpected athleticism, earning the nickname "Prince of Asia" for his massive international fanbase. This variety exposure allowed him to transition into more serious acting roles, showcasing his range beyond slapstick humor.

His acting portfolio grew impressively with standout performances in the medical melodrama It's Okay, That's Love (2014), where he played a Tourette's syndrome patient, earning praise for his sensitive portrayal. He then delivered a gripping performance in the neo-noir film Confession (2014) and displayed his comedic chops in the black comedy Collective Invention (2015). Lee further demonstrated his dramatic versatility in the sitcom The Sound of Your Heart (2016), which became a cult favorite, and the police procedural drama Live (2018), where he played a rookie officer. His film work continued with the human comedy Inseparable Bros (2019), a touching story about two intellectually disabled men that highlighted his ability to balance humor with heartfelt emotion.

Throughout his career, Lee Kwang-soo has collaborated with numerous top-tier talents, including Jo In-sung on It's Okay, That's Love, Yoo Jae-suk on Running Man, and Shin Ha-kyun on Inseparable Bros. His contributions to Korean entertainment have been recognized with several awards, including the Excellence Award at the SBS Entertainment Awards and the Best Supporting Actor nomination at the Baeksang Arts Awards. Beyond his professional achievements, Lee is known for his philanthropy, frequently donating to children's charities and supporting disaster relief efforts. As of 2025, he continues to pursue acting projects while maintaining his status as a beloved public figure, his career serving as a testament to the power of versatility and perseverance in the competitive world of Korean entertainment.