Cast

Y
Yoon Hyun-min
as Ko Nan-do / Holo
K
Ko Sung-hee
as Han So-yeon
C
Choi Yeo-jin
as Ko Yoo-jin
H
Hwang Chan-seong
as Baek Chan-sung
L
Lee Jung-eun
as So-yeon's mother
K
Kang Seung-hyun
as Yoo Ram
S
Son Jong-hak
as Nam Gi-Ho
J
Jung Young-ki
as Jo Jin-Seok
J
Jeong Yeon-joo
as Ji Na
N
Nam Myung-ryeol
as Baek Nam-Gyu
J
Jeong Do-won
as Mr. Jeong
L
Lee You-mi
as Ji Hye
Y
Yang Dae-hyeok
as Lee Dong Sik
G
Gong Min-jeung
as Jeong Ah
P
Park Geon-gyu
as GIO Labs staff
K
Kim Soo-jin
as Mère de Nan-Do
L
Lee Ki-chan
as Lee Ki Chan Yeon Kang Woo [So Yeon's boss]
B
Baek Jin-hee
as Voice