Ido is the man who originally found Gally and brought her back to life. He is an ancient citizen of Zalem, an outcast for some unknown reason. In the Junkyard, he works as a cyber-doctor in the day and as a Hunter-Warrior at night. He is Gally's closest friend, being almost a father to her.

Gally's first love. Unfortunately, young Yugo is obsessed with the idea of going to Zalem and he is ready to do almost anything to reach his goal, including being a spine thief, a lucrative but very dangerous business, especially if someone put a bounty on your head...

The famous Motorball Emperor. A formidable fighter who's eventually challenged by a confused and lost Gally. There is quickly a strong bound between Gally and him, yet they are fated to fight, as both of them want to achieve victory.

"I didn't think such an extraordinary man could exist" - Gally, Gunnm Vol. 3

One of Gally's fierce enemy. After being once (easily) defeated in a fight by Gally, Zapan swore to avenge himself of that dishonour. He his responsible for having raise the bounty against Yugo. For this, he is almost killed by Gally. However, he suffered great trauma and he accidentally kills his girlfriend after seeing Gally (Motorball star) on TV. Once again he seeks revenge against Gally and this time he is killed. Yet, he his brought back to life and he goes after Gally one last time in his strongest and most lethal form yet...

I guess I could say Professor Nova is Gally's most important ennemi. He has always been there, in the shadows, responsible in some way about what happens to her. Desty Nova fits nicely the description of the typical mad scientist. His goal? Finding if man can actually master his karma.