Jefferson Jackson (Earth-Prime)

"So you're Jax. Yup. The better-looking half of Firestorm and the ship's mechanic extraordinaire at your service, ladies."

- Astra Logue and Mindscape Jefferson Jackson

Jefferson "Jax" Jackson is a former mechanic and one-half of Firestorm, and a former member of the Legends of Tomorrow.

One-Half of Firestorm
In 2015, Jefferson Jackson took over the deceased Ronnie Raymond as one-half of Firestorm. Jackson then worked alongside Martin Stein to further control their powers and become a vigilante.

Recruited by Rip Hunter
Later that year, Jackson, alongside Martin Stein, Sara Lance, Mick Rory, Ray Palmer, Kendra Saunders, Carter Hall and Leonard Snart were recruited by Rip Hunter. They were then the founding members of the team known as the Legends of Tomorrow and defended the timeline.

After the first night on the Waverider, the Legends soon argued about only having one bathroom on the vehicle with Hall spreading his wings at Jackson, who was enraged and attacked Hall. After Snart misfired a blast from his Cold Gun at Lance, the team began fighting each other violently. The fight was eventually broken up by Rip Hunter.

As a Legend
During their war against Vandal Savage, Jackson was once sent into the Temporal Zone to counteract his accelerated aging and later returned to the team, defeating Savage once and for all.

In late 2017, Stein was excited about his grandson and asked Gideon to fabricate an unitard. He then sang Good Morning on his way to the bridge and confused Jackson, who refused to accompany him.

Eventually, with Stein killed in action during the Nazi Invasion, Jackson decided to leave the Legends of Tomorrow and retired from vigilantism. However, Jackson briefly returned and assisted the Legends' final battle against Mallus.

Possible Future
In a possible future, Jackson donated his Firestorm Suit to the Flash Museum in 2049, where it was displayed next to the suit of Jesse Wells and Atom.

Former Powers

 * Firestorm Matrix Connection: Connected to Martin Stein through the Firestorm Matrix, Jackson possessed a variety of abilities.
 * Nucleokinesis: Firestorm constantly created atomic reactions such that the instability creates a great amount of nuclear energy. Jackson, with Stein in his mind, could then manipulate the energy as weapons.
 * Flight: By shooting nuclear blasts to the ground, Firestorm was able to generate enough force to defy gravity and levitate in the air.
 * Nuclear Pyrokinesis: Firestorm had the ability to create nuclear flames from their bare hands and harness it to attack their opponents.
 * Psychic Link: While merging with Stein as Firestorm, Jackson was able to receive and comprehend verbal messages from Stein.

Abilities

 * Engineering: Prior to becoming Firestorm, Jackson was a car mechanic and later taught by Rip Hunter to repair the Waverider.
 * Hand-to-Hand Combat: Jackson was able to briefly combat Carter Hall who has four thousand years of combat experience.
 * Marksmanship: Jackson was shown proficient in handling firearms such as the Cold Gun.

Current Equipment

 * Cold Gun: Jackson acquired the Cold Gun from Mick Rory, who gave him the firearm to assist the ex-Legends to search for his children.
 * Captain Cold Suit: Jackson wore one of Leonard Snart's suits as Captain Cold 2.0.
 * Captain Cold Goggles: Jackson wore a pair of blue goggles to protect his eyes from the bright flashes of the Cold Gun.

Former Equipment

 * Firestorm Suit: As Firestorm, Jackson wore a red and orange protective suit that could be summoned when the Firestorm Matrix was activated.
 * Quantum Splicer: To separate and merge as Firestorm, the Quantum Splicer was used by Jackson during his time as Firestorm. The splicer was eventually installed on the Firestorm Suit and can be summoned whenever they merge. However, it was returned to S.T.A.R. Labs soon after Stein passed away and Jackson retired from vigilantism.