Rogers is depicted as a World War II-era super soldier who was given a serum that provided him with superhuman abilities, including enhanced durability, strength, and athleticism.

After returning the Infinity Stones to their original timelines, he remains in the 1940s with his lost love, Peggy Carter; they marry, and Rogers lives a full life.

[13][14] Chris Evans's portrayal of Steve Rogers has received acclaim, and the character is often cited, along with Robert Downey Jr.'s Tony Stark, as cementing the success of the MCU.

Captain America was first conceived as a comic book character in 1940,[21] as a direct response to the military actions of Nazi Germany, prior to the United States entering World War II.

[22] The initial introduction of the character included the concepts of a soldier named Steve Rogers being given a serum bestowing enhanced strength and agility, wearing a patriotic red, white and blue uniform, carrying a shield, and having as a sidekick, a teenaged Bucky Barnes.

Feige, a self-professed "fanboy", envisioned creating a shared universe just as creators Stan Lee and Jack Kirby had done with their comic books in the early 1960s.

[c] At just 5-foot-4-inch (1.63 m) tall and weighing only 90 pounds (41 kg), Rogers was also afflicted with a number of medical issues including asthma, scoliosis, heart arrhythmia, partial deafness, stomach ulcers, and pernicious anemia.

He is recruited into the Strategic Scientific Reserve (SSR) as part of a super-soldier experiment under Erskine, U.S. Army Colonel Chester Phillips, and British MI6 agent Peggy Carter.

The night before the treatment, Erskine reveals to Rogers that Nazi officer Johann Schmidt, head of the science division called Hydra, underwent an imperfect version of the procedure and suffered permanent side-effects.

Senator Brandt takes advantage of the media hype around Rogers' actions and has him tour the nation in a colorful costume with the title of Captain America to promote the sale of war bonds.

Using information extracted from Zola, Rogers leads an attack on the final Hydra stronghold to stop Schmidt from using weapons of mass destruction on major American cities.

Agents possessed by Loki, including Clint Barton, attack the Helicarrier, disabling one of its engines in flight, which Stark and Rogers work together to restart.

Sometime afterwards, Rogers records a number of public service announcements for high school students, encouraging them to do things like maintain healthy lifestyles, obey rules, and practice patience.

operative Maria Hill manages to extract the trio to a safehouse where Fury, who faked his death, is waiting with plans to sabotage the Helicarriers by replacing their controller chips.

After Maximoff also causes the Hulk to ravage the city before being subdued by Stark, Rogers and the other defeated Avengers take refuge at Barton's safe house so they can recover.

This leads to U.S. Secretary of State Thaddeus Ross informing the Avengers that the United Nations is preparing to pass the Sokovia Accords, which will establish a U.N. panel to oversee and control the team.

The Avengers are divided: Stark supports oversight because of his role in Ultron's creation and Sokovia's devastation, while Rogers is hesitant to give the government that kind of control over the team.

[f] When Barnes regains his senses, he explains that Zemo is the real Vienna bomber and wanted the location of the Siberian Hydra base, where other brainwashed "Winter Soldiers" are kept in cryogenic stasis.

Wanted by the U.N. for breaking the Sokovia Accords, Rogers, Maximoff, Romanoff, and Wilson go into hiding, while Barton and Lang strike a deal with the government for house arrest so that they can be with their families.

As Thanos' children and the Outriders invade the battlefield, Rogers, Barnes, Romanoff, Wilson, Rhodes, Banner, T'Challa, and the Wakandan armies mount a defense and get support when Thor, Rocket Raccoon, and Groot arrive.

After making a plan, Rogers leads Rocket, Danvers, Thor, Romanoff, Rhodes, Banner, and Nebula into space on the Benatar to hunt Thanos at his garden planet.

However, the restored Avengers, the Guardians of the Galaxy, the Wakandan army, Masters of the Mystic Arts, Ravagers, and Asgardians arrive and Rogers rallies them all in a final battle against Thanos.

Walker indicates his desire to fill Rogers' shoes but comes into conflict with Wilson and Barnes, who refuse to work with him and the Global Repatriation Council (GRC) in tracking down the Flag Smashers, a group of terrorist super soldiers.

In an alternate 2012, Rogers, having successfully led the Avengers to victory over Loki, prepares to coordinate search and rescue of civilians when he encounters the time traveling 2023-Rogers in Stark Tower.

[77] Evans' training regimen to get in shape for the role included weight lifting, which consisted of "the classic bodyweight and bodybuilding stuff", gymnastics and plyometrics, while staying away from cardio-based exercises, along with a high-protein diet.

[81] In his earliest appearance, designed by Sheppard, "post-serum Steve was All-American in a devastatingly tight white tee and khaki pants",[82] while in The Avengers Byrne made him "sophisticated enough to beautifully blend plaids and stripes.

"[82] Costume designer Judianna Makovsky described his fashion evolution between Winter Soldier and Captain America: Civil War (2016) as becoming increasingly comfortable in his clothes.

[104] The origin story of Captain America follows that of the comic books, particularly Ultimate Marvel for certain elements like growing up in Brooklyn and Bucky being a childhood best friend rather than being met later, but diverges from there.

[109] Likewise, in his review of Avengers: Endgame, Joe Morgenstern of The Wall Street Journal lauded both actor and character, calling "Chris Evans's effortlessly likable Steve Rogers/Captain America, the team's natural leader.

"[110] Peter DeBruge, writing for Variety, had a more critical take, finding that "as Marvel heroes go, Captain America must be the most vanilla of the lot", and that because of his quick healing and fighting abilities, "there's never the slightest concern that the Nazis might get the better of him".