Store manager unknown episodes
Kim Kwang Kyu unknown episodes
Kim Gong-joo 20 episodes, 2014-2015
Kim Gong Sook 18 episodes, 2013
Shin Joon-ho Imposter 2 episodes, 2013
Han Gyul's homeroom teacher unknown episodes
Myung Gil 1 episode, 2012
Jung Byung Dal unknown episodes