Jung Tae-min
Seo-jun
Young Yejong
Hyun-bin
Hyun-jun
Jeong-seok
Lee Eun-jo
Park Yeon
Mentor
Self
Self (Chani)
Choi Ji Won [Da Hee's classmate]
Jeong Se Yeon [Su Ho & Seo Jun's friend]
Gyu-han
Jang-won
Luice
Prince Uiseong
Himself
Yoon Dan
Hwang Woo-joo
Park Sun-woo
Ja Kyung (young)
Kim Do-jin
Kang Tae-joon (young)
Kang Ma-ru (young)
Cha Dong-joo (young)
Kang Cha Ni
Host
Guest