Martel is one of the Chimeras that joined Greed to get revenge on the military for what they did to them in the 5th Laboratory. She gets inside Alphonse's suit to make him unable to move when he gets captured by the Chimeras. She ends up developing a relationship with who tries to understand her motives unlike Ed. She is killed by King Bradley right after taking shelter in his suit as she had done a lot of times in the series.