Fireball, a renegade clone trooper, belonged to the Clone Underground, a network formed by Clone Captain Rex in the early years of the Imperial Era. Alongside Gregor, Echo, and Nemec, Fireball participated in a mission involving an attack on the prisoner transport ship that successfully liberated Howzer and two other clones. Tragically, he met his end defending the Underground's base on Teth from an Imperial clone assassin, identified as CX-2.
On the planet Kamino, Fireball was created through cloning from the genetic template of human bounty hunter Jango Fett. He was intended to serve as a clone trooper within the Galactic Republic's clone army during the Clone Wars against the Separatist Alliance. Sometime after the Clone Wars concluded and the rise of the Empire, Fireball defected and joined Rex's clandestine Clone Underground.
Around 18 BBY, Fireball was involved in an attack targeting an Imperial Gozanti-class cruiser. This cruiser was transporting clones deemed disobedient from Balmorra to a still unknown location. After breaching the vessel, Echo instructed Fireball to liberate Howzer and his fellow clones, while he and Nemec took control of the ship's bridge. Having freed and armed the clone prisoners, Fireball and the rest of the raiding team evacuated the ship as an Imperial Venator-class Star Destroyer arrived. As a squadron of V-wing starfighters bombarded and destroyed the prisoner transport, Fireball and his fellow rogue clones escaped into hyperspace aboard their ship.
Approximately around the same year, Fireball was present at the Clone Underground's hideout, situated within the B'omarr Order Monastery on the planet Teth. It was there that a brainwashed Imperial clone assassin, CX-1, was captured and brought in for interrogation. Fireball decrypted CX-1's data puck, discovering that it contained a target list including Senator Avi Singh and Omega, which prompted Rex to summon Clone Force 99. Upon the arrival of Clone Force 99 to assist with the interrogation, Fireball volunteered to prepare a meal for everyone. When the clone assassin CX-2 launched an attack on the Clone Underground base with the intention of eliminating CX-1 for his failed mission, Fireball seized a flamethrower in an attempt to disrupt the assassin's aim and provide cover for the others to retreat. However, he was struck in the shoulder, causing him to drop the weapon and fall to the ground. The flamethrower ignited a nearby thermal detonator, which in turn set off several other detonators, resulting in a massive explosion that killed Fireball and buried the outpost under debris.
Being a clone derived from Jango Fett, Fireball possessed a height of 1.83 meters and exhibited tan-colored skin. He demonstrated exceptional skill with blasters, effortlessly neutralizing numerous stormtroopers. Furthermore, he proved to be a highly competent pilot. During the attack on their base on Teth, he displayed selflessness and courage by grabbing a flamethrower and placing himself in the line of fire to protect the others when he saw that Nemec had fallen. Fireball also had the ability to cook for the troops at the Clone Underground base on Teth. When the Bad Batch visited the base, he prepared food using Gregor's personal recipe, adding his own unique spicy twists.
Fireball was outfitted with standard Phase II clone trooper armor, distinguished by a dark green tint. The visor of Fireball's helmet also featured a green coloration.