On screen
Cast
71 credited performers
Lee Hyun-woo
Lee Bo-gyeom
Yoon Hyun-soo
Choi Yul
Ryu Abel
Han Yu-na
Cho Jin-se
Song Woo-taek
Lee Seo-el
Yoon Chae-a
Jeong Young-joo
Shin Mi-seon
Kim Hong-pyo
Han Pan-dong
Jo Ah-young
Song Da-eun
Kang Soo-bin
Kwon Ri-ae
Kim Min-ji
Chu So-yeon
Shin Jun-hang
Jo Jun-seo
Yoo Seung-mok
Vice Principal
Kim Min-seok
Kang Eun-hwan
Kim Hae-jun
Uncle Dong-chul
Lee Seung-joon
Oh Sang-soo
Kim Ji-an
Chu So-yeon
Park Gyu-young
Mak-soon
Cha Eun-woo
Soo-hyun
Kim Yi-kyeong
Min Ji-a
Song Young-ah
Cheon Song-yi
Park Hae-in
Seo Yoon-ji
Baek Hyo-won
Student
Kim Esther
Student
Kwon Hyeong-seok
Student
Jeong Ho-gyun
Student
Lee Jong-wook
Bong Min-sik
Im Yong-soon
Teacher
Lee Hwa-sun
Teacher
Sin Ha-jun
Teacher
Kim Yoon-soo
Student
Shim Wan-jun
PE Teacher
Kong Yi-yeon
Student
Son Jung-hoon
Student
Heo Tae-an
Student
Sung Yoo-na
Student
Jung Da-you
Student
Eun Yoo
Student
Kim Ha-eon
Jin Seo-won (Young)
Go Gyoung-hee
Teacher
Ahn Jin-hee
Teacher
Kim Won-hun
Youtuber "Tough Guy"
Im Hyun-joo
Doo-na
Hwang Ye-won
Han Hae-na (Young)
Kim Tae-yeon
Han Yu-na (Young)
Kim Te-yi
Song Woo-taek (Young)
Kang Yoon
Jun-woo
Jeong Bin
Hae-na's Friend
Kim Soo-ro
Taxi Driver
Han Hyeon-jun
Do Jae-min
Jo Hyeon-jin
Do Jae-min's Mother
Moon Min-chul
Seo Chang-soo
Lee Seob-geon
Min Gyeong-seok
Jung Ja-young
Police Officer
Shin Hee-cheol
Lingerie Buyer Couple Man
Lee Hye-eun
Lingerie Buyer Couple Woman
Jung Yu-rie
Shop Clerk
Park Deu-ni-saem
Teacher
Kim Chan-mi
Teacher
Kim Yong-oh
Teacher
Kang Hyun-mo
Teacher
Jang Yong-bok
Wedding Officiant
Gim Dong-in
Newlywed Parent
Lee Jae-yi
Hyun Jae-hee
Yoo Yeon-sang
Seo Yeon-ho
Lee Ji-hyun
Min Yoo-bin
Kim Min-ah
Lee Chae-rin
Lee Jeong-min
Kim Ji-won
Choi Jae-yoon
Choi Yul (Young)
Lee Yo-seob
Yo-seob
Lee Yong-nyeo
Grandma
Kim Ah-young
Do Min Gyeong [PD]