Harmony

Roshan Pau was a doctor in India on Earth. When not working in Mumbai Hospital, he took part in Jet Ski racing. When a jet ski catastrophe caused severe damage to both his body and brain, surgeons did not think there was much chance for him. His damage limbs and organs were replaced with synthetics, but the only hope for his brain was a highly experimental technology, never before attempted. This was known as Project Harmony. The idea was an aritificial intelligence chip to operate in perfect harmony with the human mind. Nobody knew if it would work, but doctors tried it, and Roshan's life was saved.

Some memories were lost to his brain damage, but the computer chip was able to unlock things from the depths of his memory, as well as extrapolate fragments of memories into more complete pictures. With a lifetime's worth of memories being partly lost, and partly approximated by computer, Roshan's sense of self was blurred. He felt like the memories did not belong to him - that he was literally a new and different person to the one who once occupied this body. He therefore chose to leave his old name behind, living instead by the name Harmony.

Role in Story
Harmony is first encountered after the first battle, where he fits Estevahl's new leg.

When the squad initiate the assault on the second fort, Harmony is eager for the opportunity to get to get out of there and take his skills to the refugee camp instead, followed by his assistant Veissa, and the lizardy thing Smi-Sri