Baek Kang-sung (6 episodes)

Shimazu Yoshihiro

Jung Gook-pyo (16 episodes)

Balthazar

Kim Jua-guen

Sim Deok-su

Self (1 episode)

Gojong of Korea

Lee Kang-hee

Kim Jong-seo

Hwang Hee

Chairman Yoon

Yi Bang-won (24 episodes)

Baek-jung

Young-kwang

Mastermind (segment "Love for Sale")

(20 episodes)

Woo-chi's Mentor

Jo Yong Deok (16 episodes)

Detective Ku

Cho Min-hyuk

Dong Chol-dong

Mr. Pyeong

Coach

Oh Pan-su

KCIA Director Kim Jae-Kyu

Master Kim

(1 episode)

Kang Man-shik

Jung Yoon Kyum (151 episodes)

백종만 관장 (65 episodes)

Kim In-Chul (81 episodes)

King Munjong (12 episodes)