퀴즈왕

한재석

Sang-kil

김수로

Lee Do-yeop

류승룡

Kim Sang-do

Чан Ён Нам

Jang Pal-nyeo

류덕환

Oh Cheol-ju

심은경

Kim Yeo-na

임원희

Lee Joon-sang

Син Ха Гюн

Doctor of Engineering

Чон Чжэ Ён

Man in Taekwondo uniform

장진

Captain Ma (uncredited)

Gong Ho-seok

Officer Gong (uncredited)

안수호

Bureau Director (uncredited)

Хан Е Чху

Han Soon-kyung

박경만

Park Joon-seo

Park Jeong-gi

Police