While You Were Sleeping

SuzyNam Hong-joo / Theme Song Performance
Lee Jong-sukJeong Jae-chan
Jung Hae-inHan Woo-tak
Lee Sang-yeobLee Yoo-beom
Hwang Young-heeYoon Moon-seon
Shin Jae-haJeong Seung-won
Kim Won-haeChoi Dam-dong
Park Jin-jooMoon Hyang-mi
Lee Ki-youngPark Dae-young
Ko Sung-heeShin Hee-min
Bae Hae-seonSon Woo-joo
Min Sung-wookLee Ji-gwang
Oh Eui-sikBong Doo-hyeon
Lee Yoo-junOh Gyeong-han
Son SanMin Jeong-hee
Lee Bong-ryeonGo Pil-sook
Pyo Ye-jinCha Yeo-jeong
Lee Do-gyeomMyeong Dae-goo
Nam Da-reumYoung Jeong Jae-chan
Shin Yi-JoonYoung Nam Hong-joo
Lee Jae-kyoonChoi Dam-dong
Go Woo-rimYoung Jeong Seung-won / Chan-ho
Kim Da-yeKang Cho Hee [Dae Hee's sister / Barista]
Kim So-hyunPark So Yoon
Baek Sung-hyunDo Hak Young [Cable Man]
Jang So-yeonDo Geum Sook [So Yoon's mother]
Moon Ah-ramYu Beom's firm's receptionist
Kang Ki-youngKang Dae Hee
Hong KyungChoi Wook Hyeon [Deserter]
Uhm Hyo-seopPark Jun Mo [So Yoon's father]
Jeon Kuk-hwanSoo Kyung's father
Kim Ki-cheonLee Hwan's father
Jang Hyun-sungJung Il Seung
Cho Mi-nyeoJi Kwang's Paralegal
Cha Jung-wonYoo Soo Kyung [Archer]
Moon Yong-seokLee Hwan [Tae Min's student]
Ryu Tae-hoProfessor Moon Tae Min
Jeong Hyun-seokChan Ho's doctor
Lee Jae-wonJo Yoon Pyo [Phone Buyer]
Lee Min-jaeSeung Won's classmate
Yoo In-sooSeung Won's classmate
Lee Na-raHa Joo-an (IV Drip Serial Killer) (Eps 3)
Son Byung-hoPresident Go
Yeo Hoi-hyeonLee Yu Beom [Young]
Choi Won-youngNam Chul Doo [Hong Joo's father]
Lee Jung-eunJae Chan's mother
Shin Eun-jungKim Joo Young
Jo Yeon-hoIm Se Young [Witness]
Lee Joo-sukPresiding judge
Hong Hee-wonDoctor Expert Witness
Yoon Yong-hyeonPark Dae Young [Phone thief]
Yoon Kyun-sangLovers
Lee Sung-kyoungLovers
Lim Ga-YoungHigh school student
Shim Wan-junMan with mustache
Kim Do-HyeKindergartner
Park Young-sooCar salesman
Kang Shin-hyoGyoo Won
Woo Sung-minKindergartner
Kim Su-inThief's daughter
Lee Ga-ryeongHospital Coordinator
Oh Choong-hwanDirector
Park Hye-ryunScreenplay
Park Soo-jinCo-Director
Lee Hae-riTheme Song Performance
SuzyNam Hong-joo / Theme Song Performance
Roy KimTheme Song Performance
Kang Min-kyungTheme Song Performance
Park Se-junMusic
Henry LauTheme Song Performance

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