Luna is a mercenary who is part of Santana's team. Santana considered Luna to be his 'good luck charm'. He is very religious and unlike the rest of his crew, kind, showing empathy towards the female prisoner and sadness when she was killed. He is the youngest mercenary in Santana's crew and also the most inept at his job, Judging by the way he combat glides and holds his weapon it is likely he has no military experience whatsoever and was brought on by Santana as just an extra body.