Assistant Director
Director
Screenwriter
Main Role
-
Yim Si Wan Main Role -
Shin Sae Kyeong Main Role -
Choi Soo Young Main Role -
Kang Tae Oh Main Role
Support Role
-
Park Young GyuKi Jung Do [Seon Gyeom's father]Support Role -
Cha Hwa YunYook Ji Woo [Seon Gyeom's mother]Support Role -
Ryu AbelKi Eun Bi [Seon Gyeom's sister]Support Role -
Yeon Je WookJung Ji Hyun [Dan Ah's assistant]Support Role -
Lee Bong RyunPark Mae Yi [Mi Joo's friend]Support Role -
Lee Jung HaKim Woo Shik [Seon Gyeom's track team junior]Support Role -
Park Sung JunKwon Young Il [Seon Gyeom's friend]Support Role -
Lee Hwang UiSeo Myung Pil [Dan Ah's father]Support Role -
Choi Jae HyunSeo Tae Woong [Dan Ah's step-brother]Support Role -
Lee Shin KiSeo Myung Min [Dan Ah's step-brother]Support Role -
Seo Jae HeeDong Gyeong [Dann Agency's director]Support Role -
Kim Dong YoungGo Ye Joon [Young Hwa's friend]Support Role -
Kim Si EunGo Ye Chan [Ye Joon's sister]Support Role -
Cha Bo SungLucian [Tae Woong' band mate]Support Role -
Seo Jin Won[Seon Gyeom's coach]Support Role -
Kim Shi Young[Coffee shop owner]Support Role
Guest Role
-
Bong Joon Ho[Himself] (Ep. 1)Guest Role -
Kim Jung HoHwang Guk Geon [Professor] (Ep. 1)Guest Role -
So Yun Ho[Police officer] (Ep. 1)Guest Role -
Kim Ye WonChoi Tae Ri [Actress] (Ep. 1-3, 16)Guest Role -
Park Sang WonPark Gyu Deok [Seon Gyeom's track team junior] (Ep. 1-4, 6)Guest Role -
Na Ji HoonKim Gi Beom [Seon Gyeom's track team junior] (Ep. 1-4, 6)Guest Role -
Kim Yong Ho[Assistant coach] (Ep. 1-4, 6)Guest Role -
Bae Yoo RamHan Seok Won [Mi Joo's ex-boyfriend] (Ep. 1 & 16)Guest Role -
Ahn Jae Jun[Athlete] (Ep. 2)Guest Role -
Kim Min Sang[Tae Ri's manager](Ep. 2-3, 16)Guest Role -
Yoon Tae Hee[Maid] (Ep. 3)Guest Role -
Kim Mi HyeYoo Ah In [Reporter] (Ep. 3-4)Guest Role -
Son Young SoonShin Ah Ryeon [Woo Shik's grandmother] (Ep. 3, 5, 10, 16)Guest Role -
Park Jung Eon[Disciplinary judge] (Ep. 3 & 6)Guest Role -
Kim Do Young[Disciplinary judge] (Ep. 3, 6)Guest Role -
Lee Jae Woo[Disciplinary judge] (Ep. 3, 6)Guest Role -
Geum Hae Na[Boxer] (Ep. 4)Guest Role -
Bret Allan LindquistRob Stark [Reporter] (Ep. 4-5)Guest Role -
Lee Soo BinLee Soo Bin [Track team girl] (Ep. 4, 7, 11, 13, 16)Guest Role -
Jung Myung Joon[Priest] (Ep. 5)Guest Role -
Ok Joo Ri[Church member] (Ep. 5)Guest Role -
Jo Yoo Jung[Church member] (Ep. 5)Guest Role -
Shim Young EunYoon Gong Ju [Mi Joo's college friend] (Ep. 5)Guest Role -
Lee Do YeopNo Geun Seong [Assemblyman] (Ep. 5-6, 12)Guest Role -
Park Joo HeeHui Jin [Producer] (Ep. 5, 7-9, 16)Guest Role -
Kim Na YoungCho Hye Won [May's employee] (Ep 5, 7, 11)Guest Role -
Kim Kyung Ae[Restaurant owner] (Ep. 5 & 11)Guest Role -
Seo Jung YeonBang Bae Jeong [Track & Field coach] (Ep. 6-7)Guest Role -
Park Joo Yong[Tae Woong's manager] (Ep. 7, 9-10, 13, 16)Guest Role -
Lee Won HeeQuentin Park [Director] (Ep. 8)Guest Role -
Je Seung Hyun[Hairstylist] (Ep. 8)Guest Role -
Lee Moo Nyoung[Convenience store owner] (Ep. 8)Guest Role -
Park Gi Seon[Doctor] (Ep. 8)Guest Role -
Garrison Michael Farquharson-Keener[Cinematographer] (Ep. 8-9)Guest Role -
Kim Jae HwaYeom Gang sun / "Julie Yeom" [Producer] (Ep. 8-9)Guest Role -
Kim Won Hae[Bartender] (Ep. 8, 16)Guest Role -
Park Jin Young[May's employee] (Ep. 11)Guest Role -
Park Joon Sang[Manager of Jieum Construction Track Team] (Ep. 13)Guest Role -
Kim Seon HoKim Sang Ho [Film director] (Ep. 16)Guest Role -
Kim Chae Won[Team staff] (Ep. 14)Guest Role -
Yang Yoon Hee[Chang Seop's mother] (Ep. 13)Guest Role -
Koo Do Kyun[Shop owner] (Ep. 13)Guest Role -
Lee Chang Won Guest Role -
Jung Soon Mi[Pureun Keunsol School faculty]Guest Role -
Kang Choon Sung[Photographer] (Ep. 3 - 4)Guest Role -
Choi Min Kyu[PE student] (Ep. 5)Guest Role -
Kim Wang Yong[Mayor] (Ep. 9)Guest Role -
Kim Young Joon[Ji Woo's assistant]Guest Role -
Kim Ki Ryung[Jeweler] (Ep. 5)Guest Role -
Park Ji Won[Pharmacist] (Ep. 13)Guest Role -
Ji Yun Seong[James' boyfriend (ep.9)]Guest Role -
Ji Han Ah[Soo Bin's aunt] (Ep. 13)Guest Role -
Park Joo Ha[Grocery store crying girl] (Ep. 5)Guest Role -
Jung Min JooMin JuGuest Role -
Kim Soo Jung[Myeong Pil's second wife] (Ep. 12)Guest Role -
Kim In Kyung[Staff] (Ep.1)Guest Role
Unknown
-
Lee Ji Hyun Unknown
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