Chief Producer
Director
Screenwriter
Main Role
-
Kim Hee Sun Main Role -
Ji Hyun Woo Main Role -
Kim You Jung Main Role
Support Role
-
Kim Ji SooGo Bok DongSupport Role -
Cha Sun WooHong Sang Tae [Ah Ran's classmate]Support Role -
Kim Tae HoonDo Jeong Woo [Teacher]Support Role -
Go Soo HeeHan Gong Joo [Kang Ja's best friend]Support Role -
Im Hyung JoonOh Jin Sang [Kang Ja's husband]Support Role -
Kim Hee WonAhn Dong ChilSupport Role -
Oh Yoon AhJoo Ae Yeon [Chairman Hong's secretary]Support Role -
Park Young GyuHong Sang Bok [Chairman / Sang Tae's father]Support Role -
Jeon Gook HwanPark Jin Ho [No A's father]Support Role -
Park Geun HyungKang Su ChanSupport Role -
Yoon Ye JooJin Yi Kyeong [Ah Ran's best friend]Support Role -
Kim Ji Young[Kang Ja's mother-in-law]Support Role -
Park Soo YoungWang Jeong Hee [Ah Ran's classmate]Support Role -
Seo Ji HeeHwang Min Joo [Ah Ran's classmate]Support Role -
Park Hee JinKim Shin JaSupport Role -
Kim Byung ChunOh Dal Bong [Myung Sung High School headmaster]Support Role -
Kang Moon YoungDo Yoon HeeSupport Role -
Seo Nam YongSang Man [Gong Joo's subordinate]Support Role -
So Hee JungJung Hae Jin [Yi Kyung's mother]Support Role -
YesriaAhn Tae Hee [Ah Ran's classmate]Support Role -
Jung Shin HyeLee Hwang Song [Grade 2, class 3]Support Role -
Yoon Sang HoonGo Bok SooSupport Role -
Jang Yoo SangOh Geun Soo [Ah Ran's classmate]Support Role -
Kim Young Sun[Oh Geun Soo's mother]Support Role -
Yang Jae JinPsychiatristSupport Role
Guest Role
-
Lee Yong Jin['Three musketeers' taxi driver] (Ep. 1)Guest Role -
Lee Jin Ho['Three musketeers' taxi driver] (Ep. 1)Guest Role -
Yang Se Chan['Three musketeers' taxi driver] (Ep. 1)Guest Role -
Kim Kwang Gyu[Kang Ja's homeroom teacher] (Ep. 2)Guest Role -
Kim Young Chul[English teacher] (Ep. 8)Guest Role -
Joo Jin MoHong Man Bok [Office of Education Chief] (Ep. 10, 12)Guest Role -
Kim Young Hee[Gangnam mom] (Ep. 11)Guest Role -
Park Seon WooLawyer OhGuest Role -
Kang Tae SungProsecutor JungGuest Role -
Kim Seo RaHan Mi Joo [Sang Tae's mother]Guest Role -
Lee Jong GooTeacher Kim [Restaurant owner]Guest Role -
Kim Gi CheonJeon Hyung Shik [Ex-deputy principal]Guest Role -
Hong Seung Beom[Anchor]Guest Role -
Kang Samuel[Lawyer]Guest Role -
Park Sook Myung[Neighbor]Guest Role -
Ahn Sang Tae[Ex-teacher]Guest Role -
Lee Sang Hoon[Gym teacher]Guest Role -
Lee Chae Yoon[Crying mother]Guest Role -
Shim Hye Yun[Baby in stroller]Guest Role -
Jung Kyung Soon[Kang Ja's mother]Guest Role -
Park Young Soo[Construction worker]Guest Role -
Heo Dong Won Guest Role -
Hong Boo Hyang Guest Role -
Park Won Ho Guest Role -
Lee Yu JuOh Ah Ran [Young]Guest Role
Unknown
-
Kim Hyun Jun Unknown
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