The First Man (2025-2026) - Full Cast and Crew

as Oh Jang-mi / Ma Seo-rin

as Chae Hwa-young

as Kang Baek Ho

as Kang Jun Ho

as Jin Hong Ju

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

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

as Ma Dae Chang [Seo Rin's grandfather]

as O Tae Pyeong [Jang Mi's brother]

as Lee Gang Hyeok [Hwa Yeong's confidant]

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

as Yeom San Wol [Hong Ju's mother]

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

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