In 2008, Yoo tied his married knot with love of his life Na Gyung-Eun. Na Gyung-Eun is a beautiful lady and she is the graduate of Yonsei University. They are strongly bonded as a loving husband and wife. They are living a happy family life. His nationality is South Korean and he is of Korean ethnicity.
With the completion of his secondary education, Yoo joined Seoul Institute of the Arts. During that time he was establishing his comedian career and this hectic schedule denied his chance of earning a degree from there. He has been active in the TV world since 1991. That year he made his TV debut by appearing on the KBS Comedian Festival. That year he performed on a parody of a commercial. Later on he was seen on the cover song of Step by Step. He had unsuccessful career for about a decade but after he began hosting the show Live and Enjoy Together and his popularity rose to prominence after this show. He was offered to host several other shows. He is also critically acclaimed for being the host of the show The Crash of MCs. In 2002, he also appeared in a popular South Korean variety show Happy Together and he won his first Grand Prize award for this performance. He is best known for being the comedian and performer of the show Infinite Challenge. He is now aged 43 years old and his net worth is in millions.