Cheer Up, Mr. Lee

Cha Seung-won

Cheol-su

Um Chae-young

Saet-byeol

Park Hae-joon

Yeong-su

Kim Hye-ok

Hee-ja

Ahn Kil-kang

Mr.Kim

Jeon Hye-bin

Eun-hee

Ryu Han-bi

Min-jeong

Cho Han-chul

Deok-gu

Sung Ji-ru

Jeong-kwon

Kim Beop-rae

Mr. Yang

정원중

Fire Marshal

Shin Hyun-been

Hye-yeong

Ji Suyeon

Ji-an

Lee Seung-won

Deok-su

Oh Tae-kyung

Ki-seop

Jung Jun-won

Chung-sik

Jung Hee-tae

Policeman

An Min-young

Hyun-sook

황성준

Underling

이승엽

Seung-yeop

서동오

Guest

Yoon Byung-hee

Deok-chang

소아린

Sat-byeol

안성원

Young Patient 1