Lee Juck was born in Seoul and attended Banpo High School.

[1] Besides being a musician, Lee is a radio DJ of major radio shows in South Korea, for example, 별이 빛나는 밤에 (At starry night) of MBC AM (1996–1998), Ten-Ten Club of SBS FM (2008–2009) and so on.

In 2005, he published a collection of short fantasy fictions entitled 지문 사냥꾼 (Fingerprint Hunter),[2] and one of the episode 제불찰씨 이야기 (The story of Mr. Self-fault) was made as an animation in 2007.

[3] He featured as a medical doctor of a colorectal surgery clinic in a sitcom TV show High Kick: Revenge of the Short Legged of MBC from 2011.

[6] On December 6, 2022, Lee donated 50 million won to support the hearing impaired through Snail of Love.