Casting et équipe

Seo Hyun-jinGo Ha-neul

Ra Mi-ranPark Seong-soon

하준Do Yeon-woo

이창훈Bae Myeong-soo

Lee Yoon-heeLee Seung-taek

김홍파Byeon Sung-joo

Ye Su-jeongYoon Yeo-hwa

Jo Yeon-heeKim Yi-boon

정해균Moon Soo-ho

Park Ji-hwanSong Yeong-tae

Yoo Min-kyuJi Hae-won

Heo Tae-heeHa Su-hyeon

우미화Han Jae-hee

Lee Eun-saemJin Yoo-ra

박지훈Ku Jae-hyun

정택현Hwang Bo-tong

김정영Moon So-nyeo (Go Ha-neul's mother)

맹상훈Go Sung-chul (Go Ha-neul's father)

권소현Song Ji-sun

박유림Ryu Jin-hee

RJ

Ryu Ji-eunGo Ha-neul (young)

Ahn So-RimYang Da-sol

류인아Go Ha-neul [Young]

백은혜Song Chan-Hee

태인호Kim Young-ha

최민Han Se-Wol

이현균Ha-Neul's high school teacher

Kil Hae-YeonYoung Ha's mother

옥주리Store owner

Seo Jeong-yeonJi Yun's mom

김정수Principal Gang

박진영High School Principal

유영복Gangnam High School Principal

Oh Se-eunFemale Student (eps 6)