character - Yoon-gab/Gang Cheol

character - Self

character - Self

character - Self

character - Self

character - Self

character - Self

character - Lee Seung-chun

character - Himself

character - Han Kang-bae

character - Himself

character - Himself

character - Yook Sung-jae

character - Self

character - (Episodes 1-111)

character - Yu Deok-hwa

character - Yu Deok-hwa

character - Himself

character - Sung-jae

character - Himself

character - Self

character - Bullied Student

character - Park Woo-jae

character - Hiking University Student

character - Gong Tae-kwang

character - Kang Min-gu

character - Sung-joon

character - Self

character - Arnold

character - Self

character - Self

character - Self

character - Himself

character - Guest