Full cast of Red Balloon

Seo Ji-hye

Cho Eun-gang

20 episodes

Lee Sung-jae

Ji Nam-cheol

20 episodes

Hong Soo-hyun

Han Ba-da

20 episodes

Lee Sang-woo

Ko Cha-won

20 episodes

Jung Yoo-min

Jo Eun-san

20 episodes

Yoon Mi-ra

Na Gong-ju

20 episodes

Yun Ju-sang

Ko Mul-sang

20 episodes

Lee Bo-hee

Yang Ban-sook

20 episodes

Jung Bo-seok

Cho Dae-bong

20 episodes

Kim Hye-sun

Ko Geum-a

20 episodes

Choi Dae-chul

Cho Dae-geun

20 episodes

Seol Jung-hwan

Kwon Tae-gi

20 episodes

Yoon Ji-sook

Lee Ji-ok

20 episodes

Lee Sang sook

Yeo Jeon-hui

20 episodes

Oh Eun-seo

Go Mi-pung

20 episodes

Jo Yeon-ho

Ji-un

20 episodes

Go Na-Hee

Ji-cheon

20 episodes

Koo Ja-geon

Kwon Tae-gi's friend

2 episodes

Lee Chang-In

(waiter)

2 episodes

Lee Tae-yoon

Detective

1 episode

Na Se-na

Jo Eun-byeol Teacher (Eps 10)

1 episode