Han Gi-joong

Poongsan

(Section chief)

The Whistleblower

(Director of National Intelligence Service (cameo))

Dream

(Police Officer)

The Tattooist

The Negotiation

(Lieutenant General Son)

Rough Cut

(President Park)

The Attorney

(Lee Heung-gi)

Les Formidables

(Prosecutor Jung)

In Love and the War

Bad and Crazy

(Kim Sung-ho)

Big Mouth

(Kim Gap Joo [Secretary general])

It's Okay to Not Be Okay

(Kwon Man Su)

Agency

(Kim Eun-soo)

Secret Love

(Chief Prosecutor Yang Iktae)

Dr. Romantic

(Head of Jongseon)

The Good Bad Mother

(Kim Doo-Yeol)

Melancholia

(Ryu Hyun-il)

King the Land

(Chairman Han)

My Liberation Notes

(Sweet potato farmer)

The Fiery Priest

(Park Won-Moo)

Meow, the Secret Boy

(Lee Jae Sun's foster father)