Justice Society of America

Jakeem somewhat reluctantly joins the Justice Society as a part-time member.^[4][5] Jakeem is welcomed by the fellow young hero Courtney Whitmore (the Star-Spangled Kid, who later changes her codename to Stargirl), who becomes a friend, and positive influence on him. He also benefits from the guidance of Johnny Thunder himself. He and Hourman II also build a brotherly friendship. Like Johnny before him, he often causes trouble by wishing for things without meaning to, due to poorly worded commands.

During the "Last Laugh" story arc where certain villains in the DC universe have been affected by the Joker's laughing gas, a Jokerized Solomon Grundy attacks the JSA headquarters. His initial attack involves dropping the head of the Statue of Liberty outside the doors of the JSA and knocking out the then-caretaker of the museum Alexander Montez. Jakeem and Courtney are the only two at the headquarters at the time. Their fight against Grundy goes badly, as he steals Jakeem's pen and retreats to the sewers. Jakeem tells Courtney he wants to get the pen back not because he sees the Thunderbolt as his power, but because the Thunderbolt is his friend.

During the fight with Grundy, Jakeem is nearly knocked out by the behemoth. He realizes Courtney is in grave peril and in desperation, stretches to reach his pen, just out of reach. A purplish-pink wave of energy appears in his eyes and around the pen, which levitates into his grasp. Jakeem briefly wonders how this has happened, but decides to figure it out later. The fight serves as a bonding experience between the two young heroes. Jakeem has the Thunderbolt fix the statue.^[6]

Johnny Thunderbolt

Also in the course of the battle with Grundy, Jakeem unwittingly cures his predecessor Johnny Thunder of his Alzheimer's disease. Johnny immediately falls prey to the Ultra-Humanite, who takes over Johnny's body in order to command the Thunderbolt's powers. In the "Stealing Thunder" storyline,^[7] Jakeem is one of several heroes left free from Ultra's control. Eventually Jakeem wrests control of the Thunderbolt back from Ultra, but Johnny Thunder loses his life. Jakeem then wishes that the Thunderbolt could save Johnny somehow, so the genie chooses to merge with Johnny, creating a new being with the memories of both. He later assumes the name Johnny Thunderbolt.^[8] Johnny Thunderbolt bears Johnny's likeness, though it is not clear how the personalities of Johnny and the two genies interact, and whether any one personality is dominant. Johnny's family is informed of his death and a funeral is held at Valhalla, a cemetery for superheroes. The family does not know that he lives on as the Thunderbolt. The Thunderbolt eventually stops displaying Johnny's likeness while still speaking as him.

Father issues

With Johnny's help, Jakeem meets his biological father Phil who is now an engineering student. Jakeem does not reveal his true identity, but he also meets Phil's wife Jennifer and his younger half-brother. He is torn by his longing to reconnect with his biological father, but fears he will upset Phil's life.^[9]

Infinite Crisis

At the dawn of the "Infinite Crisis" storyline, the Spectre shunts Jakeem through his pen into the Fifth Dimension, where he succumbs to the machinations of Qwsp and becomes a mad tyrant.^[10][11] The Thunderbolt amasses an army to fight him, including the Thunderbolt's son, Shocko and Shocko's wife Peachy Pet. With the help of the JSA, Jakeem is freed of Qwsp's evil influence.^[12] Among Qwsp's prisoners is Johnny Thunder, apparently separated from the Thunderbolt and living in the Fifth Dimension. During the confrontation, Mister Terrific convinces the Thunderbolt to stand up to Jakeem despite his usual rules, allowing the JSA to reveal Jakeem's possession by Qwsp and restore him to normal. Upon the JSA's return from the Fifth Dimension, they find the villain Mordru battling with Nabu. Jakeem jumps the gun and takes action against the evil wizard (who had previously slit Jakeem's throat). Jakeem returns the favor by stabbing Mordru in the throat with his pen, then summons the Thunderbolt, electrocuting Mordru. Jakeem then asks the Thunderbolt to send Mordru "somewhere none of us will ever have to see him again" (followed for the first time by a "please").^[13]

Return

When Jakeem and Thunderbolt returned to the JSA, Jakeem was introduced to the new members of the team that had joined during his absence.^[14] However, he turned angry when he found out there were no rooms for him to stay in, due to the big roster of the team. He soon met up with the newest recruit Lightning for whom he immediately fell for, though she never returned the feeling. Soon after in a "Thy Kingdom Come" story arc, when William Matthews, otherwise known as Gog, attacked the Brownstone, Jakeem quickly tried to make Thunderbolt attack him, but was instantly knocked out by Gog.^[15] Later, when the true Gog appeared, Jakeem took a small part in the ensuing battle, mostly staying in the background.^[16] Jakeem was last seen at Stargirl's birthday party, when he gave her a picture of him and other new recruits to the team, thanking her for being a teacher to them.^[17]

In Blackest Night: JSA, Mr. Terrific creates a "Black Lantern bomb". He mentions that Jakeem was the first person to be taken out by Black Lantern Terry Sloane, as Jakeem has the Thunderbolt's power. Mr. Terrific used Green Lantern, Doctor Fate, Lightning and Stargirl to create the successful bomb that had mimicked Thunderbolt's powers. As soon as it was complete, Mr. Terrific set the bomb off, taking out all the Black Lanterns in New York City.^[18]

Jakeem was not seen with the JSA or the newly formed JSA All-Stars following Blackest Night, but did make a cameo as one of the mourners at Damage's funeral.^[19]

Following the events of Flashpoint, Jakeem and the rest of the JSA are seemingly removed from the rebooted The New 52 timeline, with the Justice League instead taking over as the world's first publicly-known superhero team.

In the "Watchmen" sequel "Doomsday Clock", Doctor Manhattan undoes the experiment that erased the Justice Society and the Legion of Super-Heroes from history, restoring them to the DC Universe. Jakeem is among the returning Justice Society members and reunites with Johnny Thunder in his Johnny Thunderbolt form.^[20]

Jakeem later encounters the Teen Titans after Djinn is forced by her brother Elias to summon Johnny Thunderbolt. Elias attacks Johnny Thunderbolt and tears an artifact known as the Stone of Souls from within its body, rendering Jakeem powerless.^[21] When the Titans nearly die while trying to save Djinn, Jakeem discovers that some of Johnny Thunderbolt's power is within his body, and is able to save the young heroes. After Elias' defeat, Djinn restores Johnny Thunderbolt and leaves with Jakeem to explore her newfound freedom.^[22]

In the pages of "The New Golden Age", Jakeem Thunder and Johnny Thunderbolt are among the Justice Society of America members that fight Angle Man and his army of inter-dimensional Bizarros. Johnny Thunderbolt is unable to grant Jakeem's wish to get rid of the Bizarros. After Angle Man is defeated by a Huntress from an alternate future, Jakeem was present when Green Lantern's ring confirms that Huntress was right about her story and her encounter with Per Degaton. When Stargirl, Wildcat II, and Doctor Mid-Nite II make suggestions on who to call to help prepare for their fight with Per Degaton, Jakeem states that Ted Grant should be training the younger members of the JSA as Johnny Thunderbolt states that he misses Ted. The JSA is then confronted by Per Degaton.^[23] Per Degaton briefly took out the souls of Jakeem Thunder and Johnny Thunderbolt. After Per Degaton was repelled, Stargirl took Jakeem and Johnny to Germany.^[24] They find a child version of Per Degaton in Germany. Following Per Degaton's defeat, Jakeem and Flash wonder what has happened with time one week later. Jakeem was present when Stargirl arrives with Flash's daughter Boom and the Hourman android as Stargirl states that the Hourman android might shed some light on their time-related questions.^[25]

Jakeem accompanied Mister Terrific and Power Girl into visiting Icicle II at Belle Reve where Johnny Thunderbolt stayed in his pen. When they offer Icicle II a second chance by having him join up with the JSA, Jakeem reminded him about the time he helped to defeat Ultra-Humanite.^[26] Upon learning about Red Lantern's daughter Ruby Sokov from Huntress, Jakeem asks who Red Lantern is. Johnny Thunderbolt states that it is a very sensitive subject as Green Lantern states that Red Lantern was one of their biggest adversaries.^[27]