Full cast of The First Man

Ham Eun-jung

Oh Jang-mi / Ma Seo-rin

140 episodes

Oh Hyun-kyung

Chae Hwa-young

140 episodes

Yoon Sun-woo

Kang Baek-ho

140 episodes

Park Geon-il

Kang Jun-ho

140 episodes

Kim Min-seol

Jin Hong-ju

140 episodes

Jeong So-yeong

Jung Suk-hui

140 episodes

Kim Hak-sun

O Bok-gil

140 episodes

Lee Hyo-jeong

Ma Dae-chang

140 episodes

Lee Ki-chang

O Tae-pyeong

140 episodes

Lee Jae-hwang

Lee Gang-hyeok

140 episodes

Jung Chan

Kang Nam-bong

140 episodes

Kim Sun-hye

Yeom San-wol

140 episodes

Choi Ji-yeon

Han Yeong-ja

140 episodes

Kim Young-pil

Ma Dong-seok

140 episodes

Ahn Joo-in

Yang Geom-sun

140 episodes

Han Si A

Tae Suk [Young]

4 episodes

Lee Myung Hee

[Landlady]

2 episodes

Lee Da-yeon

[Luxury store employee]

1 episode

Lee Seop

[Actor]

1 episode

Jeong Yeo-reum

Oh Tae-sook

1 episode

Yoon Jae-jin

[OB-GYN doctor]

1 episode

Kang Myung-soo

[Gardener]

1 episode

Kim Ra Hui

[Tae Suk's daughter]

1 episode