Ahn Dong-gu

Eun-ho

Ho-yoon

Seok-jong

Oh Seung-taek

Oh Dong-gyu

Yi-wan

Ha Do-yun

Jung Ji-hun

Seo Eun-kang

Space & Aeronautics Admin, rookie

Choi Byung-tae

Gu Eun-ho

Young-bae (voice)

Lee Soo-woong

Hyun-sung

Cha Yoon-taek (young)