Kim Eui-sung

as Director of the NIS

as Jo Won-do

as Self

as Ko Seung-Cheol

as Manager Choi

as Choi Jo-eun

as Narrator (voice)

as Chun-sik

as Actor

as Jajang / Doctor

as Oh Gook-sang

as Tick-tock Grandpa

as NIS Director Choi

as Hwang Won-hyeong

as Self

as Jajang / Doctor

as Masayoshi Son

as Self

as CEO Baek

as Self - Host

as Jang Sung-cheol

as Mr. Jang

as Jeong-beom

as Priest

as Director Ahn

as Sanung

as Kim Joo-Myung

as Chang-gyu

as Police Superintendent

as Cha Byung-Joon

as King Lee Jo

as Lee Wan-ik

as Self

as Self

as Mr. Min

as Self

as Lee Boo-young

as President Lee

as Deep Throat (voice)

as Kim Eung-su

as Kim Joonghaeng

as Hwan-dong's Father

as Chairman

as Yong-suk

as Oh Sung-moo

as No Jae-soon

as Narrator

as Doctor

as Editor-in-chief

as Clergy Dean

as Mr. Moon

as Jung Mong-ju

as Kim Sang-gyu

as Butler

as Hong Jae-deok

as Chi-ho's Father

as Son Myeong-soo

as Detective Do

as Sangwon

as Park Young-jin

as Shin

as Han Myung-hoi

as Mr. Kim

as Jungwon

as Mr. Choi

as Manager Kang

as Self

as Professor Kang

as Joongwon

as Ah-gwi's Subordinate

as Soo-in

as Mr. Park

as Editor in chief

as Im Wan-gi

as Han-sik

as Hyo-sub

as Jealous man

as Director Park

as Chang-se

as Kim Won

as Bae Pil-gu