Space Brothers #0

Brian Jay (voice)

Mayumi Nanba (Nanba's Mother) (voice)

Jason Butler (voice)

Mutta Nanba (young) (voice)

Mutta Nanba (voice)

Hibito Nanba (young) (voice)

Takio Azuma (voice)

Damien Kweller (voice)

Phillip Louis (voice)

Hibito Nanba (voice)