Barnes Gernsback is a minor antagonist of the manga Mobile Suit Crossbone Gundam and later a supporting protagonist in its sequel Mobile Suit Crossbone Gundam Steel Seven. He is a member of the Jupiter Empire elite force Death Gale Team.
Barnes is a loyal soldier of the Jupiter Empire, fighting out of his loyalty towards Crux Dogatie, despite this, he is frequently shown to be disturbed by some of the action of Jupiter Empire, such as when Giri Gadeucca Aspis is torturing Zabine Chareux. He used to have a son, who perished in battle, as a result, he didn't wear a helmet during battle. He also found Tobia to resemble his son, and after getting defeated by Tobia, he even revealed the weakness of the Jupitris 9, the flagship of Jupiter Empire to him.
When Tobia and Kincade were sent to infiltrate the Jupiter Empire to find out Crux Dogatie's whereabout, they pretended to be attacked by the Crossbone Vanguard, and Barnes sent his force to rescue them, after there were rescued, Barnes sent them to the hospital. However, after Barnes's commander realized that they were spies, Barnes was sent to capture them. At first, Barnes had the upper hand, but due to Zabine's intervention, Barnes was forced to retreat.
Soon, Barnes was arranged to the Jupiter Empire elite team Death Gale team during Zabine's betrayal, which Barnes was shocked to learn that Giri, despite his young age, was the leader of the force. Later, they were sent by Karas to fight the Crossbone Vanguard. With the Death Gale team's formation, he, together with Giri and Rosemary were able to heavily damage Kincade's Crossbone Gundam X1, however, after their formation was broken, Kincade rammed Barnes's Mobile Suit into the sail of Mithother Vanguard, breaking it and crashing it into Karas's ship, thus, they retreated with Tobia captured. After returning to their basez Barnes was visually disturbed when Giri was torturing Zabine to make sure the later was loyal to Jupiter Empire.
During Tobia and Tetenith's escape from Jupiter Empire, they were caught by Barnes, who demanded Tetenith to stay while allowing Tobia to escape.
Later, after the Crossbone Vanguard was framed by Dogatie, the Death Gale team was sent to destroy the Mother Vanguard, which they sucessed while most of its crew escaped to Earth.
After the seeming defeat of Crossbone Vanguard, the Death Gale team was sent to destroy Earth Federation's space fort, after achieving this, they, lead by Giri, found the whereabout of the members of Crossbones Vanguard. They were captured, but later due to an ape's intervention, Tobia was freed and fought the Death Gale team in his Crossbone Gundam X3. After defeating Rosemary, Tobia lured Barnes into striking the escape shuttle, which rendered him immovable, allowing Tobia to stab the beam saber into Barnes's Mobile Suit, defeating him. Later, Barnes stopped Giri from committing suicide after the later was defeated by Kincade. Injured, the Death Gale team settled down, and Barnes revealed the weakness of Jupitris 9, the flagship of Jupiter Empire to Tobia as he suggested them to attack the weakspot between blocks 8 and 9, marking as his redemption.
Principality of Zeon