Characters played by Kim So-Hyun
Kim Jojo
Characters played by Song Kang
Hwang Sun Oh
Characters played by Ga-ram Jung
Lee Hye Yeong
Characters played by Go Min-Si
Park Gul Mi
Characters played by Seong-yeon Park
Jojo's aunt
Characters played by Song Seon-mi
Jeong Mi Mi
Characters played by Kim Shi Eun
Yook Jo
Characters played by Yi-yeong Shim
Hye Yeong's mother
Characters played by Na-Moo Yoon
Kim Min Jae
Characters played by Tommy Arciniega
Deok-Gu
Characters played by Jae-eung Lee
Cheon Duk Goo
Characters played by Hye-ran Ji
Kim Jang Go
Characters played by Ki Do-Hoon
Brian Cheon
Characters played by Da-bin Bae
Mon Soon
Characters played by Seung-Ho Shin
Jang Il Sik
Characters played by Kim Young-pil
Hwang Jae Cheol
Characters played by Jae Han Ryu
Hyeon Woo
Characters played by Kim Young-ok
Jojo's grandmother
Characters played by Vivian Lu
Mon Sun
Characters played by Sejin Lee
Jojo's Classmate
Characters played by Yoo-Jung Jo
Mon Sun
Characters played by Sara Cravens
Anchorwoman
Female Passerby
Characters played by Baek Jae-Woo
Sun-Oh's classmate
Characters played by Geon-Hee Song
Marx
Characters played by Jenny Yokobori
Female Student