Full cast of One Ordinary Day

Kim Soo-hyun

Kim Hyun-soo

8 episodes

Cha Seung-won

Shin Joong-han

8 episodes

Kim Sung-kyu

Do Ji-tae

8 episodes

Kim Shin-rock

Ahn Tae-hee

8 episodes

Lee Seol

Seo Soo-jin

8 episodes

Kim Hong-pa

Park Sang-beom

8 episodes

Yang Kyung-won

Park Doo-shik

8 episodes

Seo Jae-hee

Park Mi-kyung

8 episodes

Moon Ye-won

Kang Da-kyung

8 episodes

Jeong Ji-ho

NFS Staff

8 episodes

Yoo Seung-mok

Jung Sang-Soo

8 episodes

Sung Nak-kyung

Song Baek-Ho

8 episodes

Park Yoon-hee

Kim Hyun-Soo's father

8 episodes

Han Dong-won

[Detective]

8 episodes

Kim Young-ah

Hong Jung Ah [NFS staff]

8 episodes

Hwang Se-on

hong Gook-hwa

8 episodes

Moon Soo-young

Park Chan Yeol

2 episodes

Kim You-jung

holding cell girl

1 episode