Directed by
Starring
Suzy Bae
Go Hye Mi
/ ...
17 episodes, 2011-2012
IU
Kim Pil Suk
17 episodes, 2011-2012
Ailee
Ailee
16 episodes, 2012
Sun-young Ahn
Kang Oh Sun (Oh Hyuk's Older Sister)
/ ...
14 episodes, 2011
Seo-Hyeon Ahn
Go Hye Sung (Hye Mi's Little Sister)
12 episodes, 2011
Il-hwa Choi
Hyun Moo Jin (Jin Guk's Father)
8 episodes, 2011
Hye-suk Lee
Song Nam Boon (Sam Dong's Mother)
6 episodes, 2011
Noo-Ri Bae
Han So-ri (Kirin Student)
4 episodes, 2011
Feifei Wang
Flash Mob Dancer
/ ...
2 episodes, 2011-2012
Min
Flash Mob Dancer
/ ...
2 episodes, 2011-2012
Jia Meng
Flash Mob Dancer
/ ...
2 episodes, 2011-2012
Psy
Trainer Coach
2 episodes, 2012
Jo Kwon
Flash Mob Dancer
1 episode, 2011
Eun-bin Park
Go Hye Sung (16 years old)
(uncredited)
1 episode, 2011