For other uses, see Captain America (disambiguation)

"I'm not trying to be Steve. I'm not trying to replace Steve. I'm just trying to be the best Captain America I can be."
―John Walker to Falcon[src]

Captain Jonathan F. "John" Walker is a super soldier, and a special operations officer of the U.S. Army's 75th Rangers Regiment. Walker was chosen by the U.S. government to succeed Steve Rogers as Captain America.


Early Life

Custer's Grove High School

"I've been a Captain before."
―John Walker[src]

When John Walker was a teenager, he attended Custer's Grove High School, where he also met Lemar Hoskins and a woman named Olivia. Walker was the captain of the football team. Eventually, he would marry Olivia and joined the United States Army with Hoskins.[3]

Military Career

"Three badges of excellence to make sure I never forget the worst day of my life. We both know that the things that we had to do in Afghanistan to be awarded those medals felt a long way from being right."
―John Walker to Lemar Hoskins[src]

Having graduated from the United States Military Academy in 2010, Walker went on to have a successful career in the United States Army, performing numerous acts of valor. He became the first person in American history to receive three Medals of Honor and led RS One missions in counter-terrorism and hostage rescue. During one of his tours, he fought alongside Christina Raynor.[3]

Captain America

Presented to the World

"On behalf of the Department of Defense and our Commander-in-Chief, it is with great honor that we announce here today that the United States of America has a new hero. Join me in welcoming your new Captain America."
―Military Man[src]

John Walker as the new Captain America

In the months following the retirement of Steve Rogers, the American government became aware of its need for a new symbolic hero to take his place. Sam Wilson, who had been trusted to become the next Captain America by Steve Rogers himself, had donated the symbolic Captain America shield to the Smithsonian Institution in Washington, D.C.—feeling that he could not fulfill Rogers' legacy. The shield was quickly taken by the United States Department of Defense and given to Walker, who was nominated for his extensive military career. Shortly after receiving approval from the President, Walker was unveiled to the world and announced as "The New Captain America."[1]

Following his appointment, Walker began attending various meetings with government officials and made speeches as Captain America, duties that he did not express any genuine interest in. Fanfare about Captain America's return to the modern-day world was established soon after Walker was chosen to take on the mantle, making him a superhero celebrity in the process.[3]

Return to High School

Walker reminisces his past with Olivia

"I’m not Tony Stark, I’m not Dr. Banner, okay? I don’t have the flashiest gadgets, I don’t have super strength. But what I do have is guts. Something Captain America always had, always needs to have, and I’m gonna need every ounce of it. Because I got big shoes to fill."
―John Walker to Sara Haines[src]

In preparation for another interview with Good Morning America, Walker returned to his hometown of Custer's Grove, Georgia. Prior to his interview, he and his wife Olivia Walker reminisced of their past in high school, back when Walker played as captain of the high school football team, before expressing nervousness about not living up to the expectations of the Captain America mantle.

Walker signing his autographs for his fans

While practicing his opening lines for his upcoming interview, Walker was joined by Lemar Hoskins, who acknowledged how their lives had suddenly changed as they became celebrity superheroes, when they were only preparing for a special-ops mission in Chile weeks earlier. Walker made clear to Hoskins that the main reason he wanted to take up the mantle of Captain America was to serve his country, not to participate in senator meetings and rallies. When it came time for the interview, Walker ran out to the high school football stadium, signing autographs on Captain America posters and action figures.

Walker interviewed on Good Morning America

Walker ran triumphantly onto the stage for his interview with Sara Haines of Good Morning America. During the interview, a rundown of Walker's military career was televised, and that he excelled in all of the trials that the United States Armed Forces put him though in preparation for taking on the Captain America mantle. Walker expressed that he had big shoes to fill, and looked up to Steve Rogers as an idol, following his career closely while he was an Avenger.[3]

Chase of the Flag Smashers

Walker attacks the Flag Smashers

"John Walker, Captain America."
"Lemar Hoskins."
"Looks like you guys can use some help."
―John Walker and Battlestar[src]

When Sam Wilson and Bucky Barnes traveled to Munich to investigate the anti-nationalist group known as the Flag Smashers, Walker and Lemar Hoskins hacked into Redwing to track their location, which ended up being destroyed by Karli Morgenthau.

Captain America introduces himself to Falcon

Arriving as reinforcements by helicopter while Wilson and Barnes were engaged in a fight on top of two speeding trucks carrying medical supplies, Walker used his shield to incapacitate Dovich before he could kill Wilson, and then with Hoskin's help, knocked Morgenthau off-balance and onto the side of the speeding truck before she could attack Barnes. Walker and Hoskins introduced themselves personally to Wilson and Barnes, to their annoyance despite having rescued them from the Flag Smashers.

Captain America saves Battlestar

Morgenthau got to her feet once again, but Walker threw his shield at her, knocking her and another Flag Smasher down. The two were not able to hold themselves off for long, as Hoskins was quickly outmatched due to the enhanced strength the Flag Smashers possessed. Walker used his handgun to shoot one of the Flag Smashers restraining Hoskins, but this allowed Morgenthau to roundhouse kick Walker onto the edge of the truck, holding on for his life. After Wilson was forced to rescue Barnes, sweeping him to safety but into a field, Walker used his shield to save Hoskins from being injured by his fall by throwing it onto the road and under his body.

Captain America sees Flag Smasher escape

As the enhanced super-soldiers recovered, Walker climbed back onto the truck, and prepared to engage Morgenthau in combat once again. Due to her enhanced strength, she made quick work of Walker, and the impact of her punches threw him into the traffic behind them, with Walker's fall being cushioned by the windshield of a passing car.[3]

Making an Offer

Walker offers Falcon and Bucky Barnes a ride

"Violent revolutionaries aren't usually good for anyone's cause."
"Usually said by the people with the resources."
"We got a lot of resources. If you guys, if you joined up with us, we could..."
―John Walker and Sam Wilson[src]

As the Flag Smashers made their escape, Walker met up with Lemar Hoskins again, and arranged for Gary to pick them up for a ride to the airport. En route, they passed by the defeated Sam Wilson and Bucky Barnes, who were hiking to the runway. When Walker offered them a ride, Wilson and Barnes coldly refused, despite Walker suggesting that the four must unite and work together to defeat their common enemy. When Barnes coldly announced to Walker that because he carried the shield did not mean he was Captain America, Walker argued that he had put in the effort and hard work during his time with the United States Armed Forces required for the position, and jumped on a grenade four times in an act of valor. Wilson and Barnes reluctantly accepted Walker's offer for a ride.

Walker discusses the GRC's current mission

Walker, having made the same assumption as Wilson that the Flag Smashers were all super-soldiers, explained that he and Hoskins came to their rescue by using Redwing to track their location. Walker explained that the Global Repatriation Council managed resources for Blipped refugees, he and Hoskins were assigned to maintain order throughout the world. Walker furthermore explained that he was not trying to be a direct copy of Steve Rogers, but someone who was trying to make a name for himself and become his own person.

Walker insists he is trying to be his own best

While Walker tried to sympathize with Wilson and Barnes by saying that he understood why they felt opposed to him bearing the shield, Wilson coldly retorted to Walker that he was not in support of him once Walker said that he wanted the support of Rogers' wingmen. Set aback and dismayed by Wilson's rejection of his offer, Walker told Gary to continue driving to the airport, returning back to the United States.[3]

Freeing Bucky Barnes

Walker reveals he freed Bucky Barnes

"I heard you were working with Bucky, so I thought I'd step in. Bucky's not gonna be following a strict schedule any longer."
"We haven't finished our work. Who authorized this?"
"He's too valuable of an asset to have tied up."
―John Walker and Christina Raynor[src]

When Bucky Barnes was taken into custody in Baltimore, Maryland for not appearing to his mandated court therapy session, Walker reached out to the Baltimore Police Station and arranged for Barnes to be freed. At the station, he was reunited with Christina Raynor, Barnes' assigned therapist and Walker's former military comrade. Walker explained that he arranged for Barnes' therapy sessions to come to an end, citing that Barnes was too valuable an asset to be forced to comply with such rigid schedules. Walker then waited outside with Lemar Hoskins for Barnes' session to finish.

Walker updates the group on his findings

Barnes and Sam Wilson left the precinct, they met with Walker and Hoskins, who further insisted that they should work together. Reluctantly, Wilson listened to Walker, who provided them with news that Karli Morgenthau was the leader of the Flag Smashers, having geotagged their location throughout Europe, and tracking the stolen shipment of medical supplies. Bucky haughtily put down Walker's new information, conceitedly questioning Walker if he had any more relevant information.

Walker warns Falcon to stay out of his way

Before Barnes and Walker could continue, Wilson intervened and alleviated the tension by acknowledging that Walker was right. However, Wilson informed Walker that they had no interest in working with them, since they operated as freelance operatives as opposed to being contracted by the government with specific authorizations put in place. Begrudged, Walker left Wilson and Barnes one final word of advice to stay out of their way.[3]

Chasing Flag Smashers

Walker prepares to raid 1337 Connect

"He says he doesn't know."
"Bullshit. That’s bullshit. We know she came through here. Now where’d she go? Do you know who I am?!"
"Yes, I do. And I don't care."
Lemar Hoskins, John Walker, and Rudy[src]

Walker's investigation led him back to Munich, Germany, in search for answers as to the whereabouts of the Flag Smashers. Working in conjunction with the Global Repatriation Council and GSG 9 der Bundespolizei, Walker launched a police raid on the 1337 Connect internet cafe.

Walker angrily questions Rudy for information

Walker arrived at the scene with the federal police to announce his search for Karli Morgenthau. Walker interrogated Rudy, the owner of the cafe, who challenged Walker's incursion on his business. Walker asked Lemar Hoskins to be a translator and serve as the median for the questioning, but Rudy was non-compliant, saying that Americans were brutes. Annoyed, Walker sternly asked Rudy knowing that they had harbored the Flag Smashers, to which Rudy spit in Walker's face in response.

Walker and Hoskins leave empty-handed

Infuriated and disrespected, Walker resorted to physical violence by pushing him against a wall, asking if he understood who he was. Rudy retorted he did, but didn't care, as he had no influence over him. As he wiped the spit off his face, Walker was only suppressed by his own limitations and Hoskins saying there was no point in continuing to question him, that Walker left the building with no new information. With no new leads from the CIA Headquarters in Langley, Walker realized that they would have to shadow Falcon and Winter Soldier for new leads.[4]

Escape of Helmut Zemo

Walker learning of Helmut Zemo's escape

"What happens next isn't a strictly on-the-books type thing, is it?"
"Lemar, if we get the job done, you really think they're gonna sweat us on the how?"
Lemar Hoskins and John Walker[src]

After the terrorist mastermind Helmut Zemo escaped from a correctional facility in Berlin, Walker and Lemar Hoskins were assigned to question the staff and review the security footage. Learning that Sam Wilson and Bucky Barnes visited Zemo the day he escaped, Walker hypothesized that they were involved in the breakout, but with no evidence to support.

Walker discusses Helmut Zemo's escape

As Walker was also desperate for leads, Walker convinced Hoskins to continue investigating their activities, although it would go against their contractual obligations. Hoskins objected that Walker was attempting to procure this information through corrupt off-the-book means, to which Walker retorted that their superiors wouldn't question them on their methods once they turned up with new information and got the job done.[4]

Search for Karli Morgenthau

Walker and Hoskins find Sam Wilson, Bucky Barnes, and Helmut Zemo in Latvia

"I used to counsel soldiers dealing with trauma, okay? This is in my wheelhouse."
"I know. And I know those soldiers, which is why I know this is a bad idea."
"Wait, John. If he can talk her down, it might be worth a try."
Sam Wilson, John Walker and Lemar Hoskins[src]

Walker and Hoskins went to Riga, Latvia and found Sam Wilson, Bucky Barnes, and Helmut Zemo in the streets. They joined them to the location of Donya Madani's funeral where Walker then handcuffed Zemo to a wall, while Wilson went inside the room to talk to Karli Morgenthau.

Walker attempts to arrest Karli Morgenthau

After taunting Barnes about the Super Soldier Serum inside of him, he broke into the room, disrupting Wilson's efforts, and announced that Morgenthau was under arrest. Feeling betrayed by Wilson, Morgenthau kicked Walker and Wilson back into a table and fled the room, to which Walker was temporarily downed while Barnes chased Morgenthau. Walker recovered as Morgenthau was shot by Zemo, and in their small scuffle, he began destroying her serum vials one by one. fter finding Zemo destroying serum vials, Walker threw the shield at him, knocking him out. However, Walker found one serum vial left and picked it up and put it inside one of his pockets, before Hoskins, Wilson, and Barnes found him.[5]

Skirmish with the Dora Milaje

Captain America demanding Helmut Zemo

"Hi. John Walker. Captain America. Well, let's put down the pointy sticks and we can talk this through, huh?"
"Hey, John, take it easy. You might wanna fight Bucky before you tangle with the Dora Milaje."
―Captain America and Sam Wilson[src]

Captain America and Battlestar barged into Sam Wilson and Bucky Barnes' room in Latvia, and demanded that Helmut Zemo be handed over to them, before the Dora Milaje made their presence known, throwing a Vibranium Spear at a column that narrowly missed Captain America. Ayo, Nomble, and Yama arrived to arrest Zemo themselves. Captain America introduced himself to Ayo and told her that they did not have jurisdiction in Latvia, to which she responded that they did wherever they pleased.

Captain America is beaten by the Dora Milaje

In an effort to get them to leave, Captain America attempted to alleviate any tension by putting his hand on Ayo's armor, only for her to knock him back and into the spear. Captain America grabbed the shield and fought back against her and the others, although. After getting the shield stuck on a table, Yama took his shield away from him, only for Ayo to tell her to leave it there, before they left. Captain America was left, humiliated, and commented that they were not super-soldiers.[5]

Super Soldier

Taking the Serum

Walker discusses the Super Soldier Serum

"If you had the chance to take the serum, would you?"
"Hells, yeah."
"You wouldn’t be worried about how it might… how it might change you?"
"I mean, power just makes a person more of themselves, right?"
―John Walker and Lemar Hoskins[src]

At a Latvian shopping district, Walker was reassured by Lemar Hoskins that although Baron Zemo destroyed the Super Soldier Serum and Wilfred Nagel was dead, their loss was not for naught, although Hoskins did not realize Walker had a vial of Nagel's serum in his possession. During their discussion, two of Walker's fans approached him to sign his autograph on their Captain America poster. Walker showed camaraderie to his partner by teasing him that he was jealous the two fans didn't ask him for an autograph, although Hoskins retorted that it was their loss, by saying that he had a custom Battlestar logo sketched out.

Walker reflects on his past military career

Deliberating whether or not to take the serum, Walker asked Hoskins if he would've taken it given the opportunity. Hoskins explained he would've without hesitation, going on to say that the serum only amplifies the traits that of which the person already had, and went on to put a spotlight on Walker's numerous acts of valor that won him three Medals of Honor, and that he was a seasoned strategist, having consistently made the optimal decisions during battle.

Walker deciding that he will take the serum

Walker reflected on the worst day of his life, reminiscing of a tour in Afghanistan in which Walker resorted to cruel actions in which he regretted. Recognizing that what he did was not right, Walker came out to say that he finally felt he was doing something right for his country once he was picked to be the next Captain America. Inspired by this conversation, and having previously shamed himself for being defeated by the Dora Milaje and being looked down upon condescendingly by Falcon and Winter Soldier, Walker ingested the serum, granting him enhanced abilities.[5]

Chasing Karli Morgenthau

Walker fights the Flag Smashers

"Where is she?!"
"It wasn't me... It wasn't me!"
―John Walker and Nico[src]

While searching for Lemar Hoskins, Walker reunited with Sam Wilson, who were subsequently ambushed by a group of Flag Smashers, including Nico and Dovich. During the fight, Walker was suddenly suppressed from behind by Nico, and was restrained until Karli Morgenthau arrived, running at Walker and preparing to kill him by stabbing him in the chest with her knife.

Walker realizes Battlestar died to his injuries

However, Walker's fate was averted by none other than Hoskins, who freed himself from his restraints and tackled Morgenthau. Walker could only watch helplessly as Morgenthau quickly overpowered Hoskins, punching him hard enough that he was cast into a brick column, caving in his chest and killing him on the impact. Walker quickly ran to the aid of his partner, realizing that it was too late and he had already died. With little time to mourn, he watched Morgenthau and the remaining Flag Smashers flee, as did Wilson and Bucky Barnes.

Walker furiously murders Nico in a blind rage

Walker jumped through a window and onto a car, looking for any straggling Flag Smashers. Walker turned to see Nico running, the same person who restrained Walker with the intention to have him killed, and the same person who held him behind from intervening to help Battlestar, although playing no direct part in his death. Furious, he demanded to know where Morgenthau went. Nico attempted to throw a stone cinder block at Walker, but he quickly deflected it with his shield.

Walker is looked upon by horrified onlookers

Walker chased down Nico to a statue located at the center of the town, in which he threw the shield at Nico repeatedly to incapacitate him. Walker stepped on his body to prevent him from escaping, and despite Nico's pleas that he wasn't responsible for Hoskins's death, Walker ignored him, and repeatedly bashed his shield through Nico's body in a fit of furious anger until he died. Walker quickly realized that he had murdered him in front of many bewildered witnesses and onlookers who video-recorded the incident. Among the crowd included several of his fans, and Morgenthau, Wilson and Barnes.[5]


"Something's not right about Walker."
"You don't say."
"Well, I know a crazy when I see one."
Bucky Barnes and Sam Wilson[src]

Having been a career soldier all his life, John Walker modeled his work after Captain America, and prior to taking the Super Soldier Serum, only wanted to do what was good for his country. John Walker acknowledges to being uncertain on fulfilling the role as the new Captain America, admitting to be only trying his best to meet expectations. Walker also cares about his friends, choosing to save his friend Lemar Hoskins before confronting his enemies. When Walker attracted resentment from Steve Rogers' comrades Sam Wilson and Bucky Barnes, he attempted to make amends with them by assisting them help them on several occasions, Walker felt scorned and embittered when Wilson and Barnes turned down his attempts of reconciliation. However, he retained some arrogance, looking down upon Wilson and Barnes as Rogers' "wingmen", rather than people he could learn from. Walker is also very prideful in his abilities and decorations, having attained three Medals of Honor during his military service.

Due to the expectations and pressure mounting on him, John appears to be prone to outbursts, shoving a man for spitting in his face and refusing to answer his questions and ruining an attempt by Falcon to negotiate with Karli Morgenthau because he was impatient to arrest her. Walker has displayed condescending attitudes, as displayed when he attempted to deny the Dora Milaje custody of Baron Zemo on the claim of jurisdiction. He has a deep seated insecurity due to not being able to measure up to Captain America and the pressure put upon him to measure up to Steve Rogers. His ego is also shown to be extremely fragile, which in turn makes him prone to rash decisions. He was humiliated by his defeat to the Dora Milaje, shaming himself for not being able to take down a non-super soldier. After the ruined negotiations with Morgenthau, Bucky Barnes expressed concern about his mental stability, noting that Walker struck him as crazy, and Sam Wilson found Barnes' observations to be stating the obvious.

Not long after, once Walker took the Super Soldier Serum himself, anything that may have been perceived as mental instability was exacerbated, and Walker became increasingly unstable. His outbursts came to a head after Hoskins was accidentally killed by Morgenthau, at which point he descended into a bitter and vengeful blind rage and chased down and brutally murdered Nico with his shield.

Powers and Abilities


John Walker in action

  • Artificially Enhanced Physiology: Walker enhanced his peak human physical prowess by injecting himself with the Super Soldier Serum, granting him enhanced strength, durability, speed, agility and stamina.
    • Enhanced Strength: Thanks to the Super Soldier Serum, Walker has the strength to perform superhuman feats such as folding a metal pipe with his bare hands when fighting Dovich, send him flying with his hits and throwing Captain America's shield with such force to embed it into a stone wall. He also used the shield to destroy a concrete structure swung at him by Nico.
    • Enhanced Durability: Walker's muscles and bones are denser and more durable than normal humans. This was demonstrated when he managed to jump out of a building and onto a van, crushing its roof.
    • Enhanced Speed: Walker can move, run, and react much faster than any normal human. He was fast enough to catch up to Nico who was also running at high speeds.
    • Enhanced Reflexes: The recreated serum enhanced Walker's reflexes. He narrowly avoided a knife thrown at him by Dovich.


"The government did a study of your body at MIT, and you tested off the charts in every measurable category. Speed, endurance, intelligence..."
Sara Haines to John Walker[src]

Walker, as a soldier, former football player and graduate of West Point, is extremely athletic. While he was not enhanced to the pinnacle of human physical potential like his predecessor, the government conducted a study of his physiology at MIT, where he tested off the charts in every measurable category, including speed, endurance, and intelligence. He is also highly decorated and experienced, being the first person in American history to receive three Medals of Honor and has led RS One missions in counterterrorism and hostage rescue. Of his own admission, Walker has "guts," as he has dived onto a grenade four times.

  • Expert Combatant: As a member of the United States Armed Forces, Walker has received hand-to-hand combat training. Walker's fighting style includes a combination of boxing, firearm improvisation and modern army combative. He was able to fight against Karli Morgenthau, a super soldier, for a moment before being overpowered by Morgenthau's superior strength. Walker was also able to stay in combat with two Dora Milaje at once, before being overpowered by the latter's superior combat skills. After gaining enhanced physical abilities, combined with his combat skills and shield, Walker was able to defeat several Flag Smashers members with relative ease.

Walker throwing the shield in battle

  • Shield Mastery: Walker is skilled in wielding his predecessor's shield in battle. He can ricochet the shield in a way it returns to his grip. He consistently threw it at the Flag Smashers to knock them down, and even threw it with enough accuracy to catch Battlestar on the concave side. After taking the recreated serum, he was able to throw the shield to make it deflect off surfaces and people before it returns to his grip. He used the shield's edge to kill Nico.
  • Expert Marksman: Walker is trained in firearms. He used his sidearm to shoot Matias holding Battlestar, barely missing the latter. Walker is also very precise with throwing the shield, consistently hitting his opponents in their center mass, and he once threw it at Zemo's head to knock him out.
  • Gifted Intellect: According to a government study at MIT, Walker tested off the charts in intelligence. On the admission of Battlestar, Walker is an exemplary military strategist, commended for consistently making the right decisions in the heat of battle.



"Just 'cause you carry that shield, it doesn't mean you're Captain America."
Bucky Barnes to John Walker[src]

Captain America uses his shield

  • Captain America's Shield: When Walker was chosen to be the second Captain America, he was entrusted with the shield to aid in his missions. Since then, Walker has used it in a manner similar to his predecessor by utilizing it in a primarily defensive manner and throwing it in an offensive manner. However, due to his aggressive personality, Walker has used the shield with lethal intent, such as when he killed Nico.
  • STI Perfect 10: Walker carries a sidearm like Captain America did during World War II, holstered on his utility belt. He armed himself with the pistol in Munich, using it to shoot Matias restraining Battlestar. Although he was disarmed by their leader, he eventually found his weapon. He continued to carry the pistol on missions, as seen in Riga.

Other Equipment

"This suit, it comes with expectations, brother."
Lemar Hoskins to John Walker[src]
  • Captain America's Uniform: Walker wears a blue and red uniform similar to those worn by Steve Rogers. Like Rogers' helmet, his helmet features a symbol representing the combination of the letter "A" and a star. The same symbol is located on the right side of his chest and on the back of his uniform, where the shield is stored.
This section requires expansion


This section requires expansion


  • Custer's Grove High School: Walker attended Custer's Grove High School where he would play sports and according to Hoskins, failed Drama class.[3]







  • In the comics, John Walker was a former United States Army soldier who was originally known as the Super-Patriot, an anti-hero who was the dark reflection of Captain America and his views on patriotism. Walker later took over the mantle of Captain America after Steve Rogers abandoned the role. After Rogers reassumed the role of Captain America, Walker became a government operative and occasional vigilante/mercenary codenamed U.S. Agent.

Behind the Scenes


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