Kim Eui-sung

Director of the NIS

Jo Won-do

Self

Ko Seung-Cheol

Manager Choi

Choi Jo-eun

Narrator (voice)

Chun-sik

Actor

Jajang / Doctor

Oh Gook-sang

Tick-tock Grandpa

NIS Director Choi

Hwang Won-hyeong

Self

Jajang / Doctor

Masayoshi Son

Self

Executive Producer

Director

CEO Baek

Self - Host

Jang Sung-cheol

Mr. Jang

Jeong-beom

Priest