Space Brothers #0

Brian Jay (voice)

Mayumi Nanba (Nanba's Mother) (voice)

Mutta Nanba (young) (voice)

Jason Butler (voice)

Freddie Saturn (voice)

Damien Kweller (voice)

Mutta Nanba (voice)

Hibito Nanba (young) (voice)

Phillip Louis (voice)

Eddie Jay (voice)