劉在錫
Yoo Jae-suk (; or ; born on 14 August 1972) is a South Korean comedian, host and television personality. He has hosted several variety television shows in South Korea, including "Infinite Challenge", "Running Man", "Happy Together, and Hangout With Yoo". Known for his quick wit and appeal across a wide range of demographics, Yoo has established himself as one of South Korea's top comedians and TV personalities as well as one of the most well-known and popular celebrity in South Korea. He is also a member of SSAK3.