The First Man (2025)

Ham Eun-jung

as Oh Jang-mi / Ma Seo-rin

Oh Hyun-kyung

as Chae Hwa-young

Yoon Sun-woo

as Kang Baek Ho

Park Geon-il

as Kang Jun Ho

Kim Min-seol

as Jin Hong Ju

Jeong So-yeong

as Jung Suk Hui [Jang Mi and Seo Rin's biological mother]

Kim Hak-seon

as O Bok Gil [Jang Mi's adoptive father]

Lee Hyo-jeong

as Ma Dae Chang [Seo Rin's grandfather]

Lee Ki-chang

as O Tae Pyeong [Jang Mi's brother]

Lee Jae-hwang

as Lee Gang Hyeok [Hwa Yeong's confidant]

Jung Chan

as Kang Nam Bong [Baek Ho and Jun Ho's father]

Kim Sun-hye

as Yeom San Wol [Hong Ju's mother]

Choi Ji-yeon

as Han Yeong Ja [Baek Ho and Jun Ho's mother]

Kim Young-pil

as Ma Dong Seok [Jang Mi and Seo Rin's biological father]

A

Ahn Joo-in

as Yang Geom-sun [Maid ]