Following a post-credits teaser in 2008's Iron Man from director Jon Favreau, the Marvel Cinematic Universe has exploded into one of the most popular and profitable film franchises in movie history - not to mention kicking off Hollywood's current shared movie universe trend. Since the time of its conception, the MCU (led by producer Kevin Feige and eventually bankrolled by Disney) has raked in $8.8 billion in global ticket sales - a number that will continue to inflate as Marvel Studios rolls out Phase 3 of their shared superhero storyline.
For half a decade The Avengers (on the big screen) were comprised of a small team - Iron Man, Captain America, The Incredible Hulk, Thor, Hawkeye, and Black Widow - under the direction of S.H.I.E.L.D. commander Nick Fury. However, throughout Phase 2 and in preparation for Phase 3 (and beyond) new heroes have or will the team, including: Vision, Ant-Man, Scarlet Witch, Spider-Man, and Black Panther, among others. The move to a more diverse and less centralized squad of heroes is in keeping with the comic books; The Avengers aren't a static (albeit superpowered) extension of S.H.I.E.L.D., they're an ever-changing group of people - willing to put their lives on the line to fight evil and protect the world (sometimes the universe).
In preparation for The Avengers' return in Captain America: Civil War, we're looking back at when each of these heroes first appeared on the comic book page.
Note: While certain MCU characters (such as Star-Lord) have teamed with The Avengers in the past, our list is limited to current Marvel Studios characters that are confirmed for Avenger crossovers in the near-future. No doubt the Captain Marvel will eventually share screen space with The Avengers but, for now, this list focuses on the heroes that are already set for direct face-time with the team. We'll update the post accordingly as future confirmations are announced by Marvel.
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Captain America (Steve Rogers)
First Appearance: Captain America Comics #1 (March 1941)
Unlike many entries on the list, Steve Rogers' Captain America actually debuted in his own titular comic book series - rather than an anthology or ing role in an established print story. Created by Joe Simon and Jack Kirby, Rogers was conceived as a super-soldier for U.S. readers that could embody the bravery of American heroes fighting in World War II. Accordingly, the cover of Captain America Comics #1 featured Rogers crashing through the window of a Nazi stronghold to punch Hitler in the face. For years, the character was one of the most popular superheroes in print; however, following the end of WWII, Captain America was discontinued as comic book creators began to shift their focus to the nuclear age (and scientific experimentation gone wrong).
Nevertheless, the character returned in the Silver Age: specifically, The Avengers #4 (March 1964), which explained Captain America's post-World War II absence. In a storyline that should be familiar to moviegoers, The Avengers #4 touted that "Captain America Lives Again," asserting that Rogers had sacrificed his life to disarm an experimental plane, fell into the North Atlantic, and spent the next twenty years frozen in ice.
The Winter Soldier (Bucky Barnes)
First Appearance: Captain America Comics #1 (March 1941)
While The Winter Soldier does not debut until Captain America #1 (January 2005), James Buchanan "Bucky" Barnes appeared alongside Steve Rogers in Captain America Comics #1. Captain America's young sidekick remained instrumental to the Rogers story for the majority of Captain America Comics' run (which lasted 75 issues) - even receiving a few crossover story opportunities of his own, including the Young Allies (where he fought Red Skull with the help of the Human Torch).
Yet, slight retcons to the Barnes storyline later asserted the real Bucky disappeared around the same time as Captain America - allowing the character to return as the brainwashed, cybernetic enhanced, Winter Soldier in Captain America #1. Similar to the films, Barnes spent decades as an instrument of the Soviet Department X - until Rogers confronts Barnes and helps the Winter Soldier regain lost memories of their time saving the world together. Three years later, following the events of Civil War, Barnes makes his debut as the new Captain America (in Captain America #34 - January 2008) after Rogers is "assassinated."
Ant-Man
First appearance: Tales to Astonish #27 (January 1962)
While Scott Lang first appeared in Avengers #181 (May 1979), the Ant-Man mantle debuted in Tales to Astonish #27 (January 1962). A reflection of the post-World War II boom in scientific discovery, Ant-Man is one of the earlier Marvel stories to depict the dangers (and wonders) of self-experimentation. When biophysicist Hank Pym discovers Pym Particles, which allow for manipulation of an organic object's size, the researcher applies his work to superheroing - armed with a size-shifting suit and a helmet that enables communication with ants. Still, despite a large role for Pym in the Marvel Universe with the Avengers (notably as the original creator of Ultron), early Ant-Man stories placed the hero on a smaller stage - investigating unsolved mysteries and taking-on local thugs.
However, as Pym grew in importance to Marvel prints, busy building other Pym Particle-powered suits and identities for himself (including Yellowjacket), the publisher refreshed Ant-Man by introducing thief-turned hero Scott Lang. Lang initially stole the Ant-Man suit to help cure his daughter of a life-threatening heart condition but, one month after his debut in Avengers #181, Lang officially took over the role of Ant-Man in the Marvel Premiere #47 (April 1979) - with Pym's blessing.
The Incredible Hulk
First Appearance: The Incredible Hulk #1 (May 1962)
As a reflection of nuclear proliferation, and subsequent unease around the world, the 1960s boomed with superhero (and villain) characters that were created via scientific mishap. Consequently, Kirby and editor Stan Lee endeavored to update a classic tale of scientific experimentation gone wrong, modernizing the horror of Dr. Jekyll and Mr. Hyde for 1960s superhero readers, with the introduction of Bruce Banner and his alter-ego The Incredible Hulk. In May of 1962, Marvel debuted the character in his own print series, The Incredible Hulk - which was cancelled after only six issues.
The character's comic book backstory saw scientist Bruce Banner caught in an experimental gamma radiation blast - moments after saving a teenager who had mistakenly driven his car onto the test field. The original Hulk was mindless and grey in color - only taking control between sunset and sunrise. Following cancellation of his solo book, the Incredible Hulk appeared in the Fantastic Four series - eventually landing as a founding member of The Avengers (in The Avengers comic series that debuted in 1963) while adopting familiar changes to the character: anger-triggered transformation and uncontrolled rage mode - that, at times, even positioned Banner as an antagonist to other Marvel heroes.
Thor
First Appearance: Journey into Mystery #83 (August 1962)
Formerly a horror anthology, Journey into Mystery shifted focus to science fiction and adventure stories as tales of nuclear experimentation-turned-bad became a pop culture trend throughout the 1960s. As a result, Lee, his brother Larry Lieber, and Kirby brainstormed ideas for a do-gooder that could up-the-ante for superheroes in print. In a time when comic book Earth was under constant attack by giant mutated monsters and advanced alien species, Lee decided that Marvel's next hero would need to be a significant step up in superhuman abilities - turning to Norse mythology for a worthy god to headline the book.
Journey into Mystery #83 introduced readers to disabled medical student Donald Blake who, fleeing an invading alien force, discovers Thor's enchanted hammer Mjolnir - and is transformed into the God of Thunder. Years later it was revealed that Donald Blake never turned into Thor, he had always been Thor. Odin had exiled his son on Earth (with no memory of life in Asgard) to teach him humility, after the All-Father became fed up with Thor's brazen attitude.
Spider-Man (Peter Parker)
First Appearance: Amazing Fantasy #15 (August 1962)
Like many Marvel characters, Spider-Man did not simply swing into his own headlining series; first, he was introduced as a one-off tale (in Amazing Fantasy #15) to test reader interest. Lee followed a noticeable upward trend in teenage Marvel readers and decided to create a character specifically for adolescent fans - one that would be especially relatable to high school-age comic lovers. Ironically, Lee debuted his teenage hero in the final issue of Marvel's anthology series Amazing Adult Fantasy - which was shortened to Amazing Fantasy for Spider-Man's debut.
Despite fifty years since his debut, Spider-Man's origins have not changed much - at least on the big screen. In his print debut, Peter Parker is bitten by a radioactive spider while attending a science exhibit - gaining superhuman strength, agility, as well as the ability to cling to surfaces, then designs his own web shooters, before confronting his Uncle's murderer and the realization that "With great power there must also come - great responsibility!" Months after his introduction, Marvel commissioned a starring series for Parker (after Amazing Fantasy #15 became one of the publisher's top sellers) - reintroducing the hero in The Amazing Spider-Man #1 (March 1963).
Iron Man (Tony Stark)
First Appearance: Tales of Suspense #39 (March 1963)
Similar to Thor, Tony Stark was introduced in another of Marvel's anthology series: Tale of Suspense. Prior to the arrival of Iron Man, Tales of Suspense was a science-fiction and mystery focused collection of shorts. In keeping with Lee's penchant for mixing up expectations for superheroes in print, playing off world politics and scientific discoveries, the comic writer introduced a pro-military playboy capitalist - a hero that no one, especially in post-World War II America, should initially like.
Stark's comic book origin is mostly akin to what moviegoers saw in Favreau's 2008 film. After proving a gifted electrical engineering and inventor at MIT (as a teenager), Stark inherits the family business - when his parents are killed in a "car accident." Following years of profiting from weapons manufacturing, Stark is injured by an explosion in Vietnam, taken prisoner by malevolent forces, and coerced into building a bomb. Fellow captive Ho-Yinsen (a famous scientist) installs a magnetic plate into Stark's chest - to prevent residual shrapnel from puncturing the American's heart - and the two build a powerful suit of armor that allows Stark to escape. However, unlike the film, Stark initially played up his millionaire industrialist persona, so that no one would suspect he was actually Iron Man; instead, claiming to send his "robot bodyguard" off to battle threats around the world.
Nick Fury
First Appearance: Sgt. Fury and His Howling Commandos #1 (May 1963)
The version of Nick Fury that first debuted in the early 1960s is very different, both in his role, personality, and physical appearance, from the modern iteration portrayed by Samuel L. Jackson. Similar to Captain America, Sgt. Fury was introduced into the Marvel Universe as a response to post-World War II American society. Whereas Steve Rogers was re-introduced to explore how much had changed in U.S. culture since the end of WWII, Fury was designed as an opportunity to reflect on the fading memory of American soldiers fighting against Axis powers. To that end, the character's titular book series portrayed Fury as a meathead general-type who led a special forces team (the infamous Howling Commandoes) on exceptionally dangerous missions.
Six months after his debut, the character appeared (albeit years later in his life) for Fantastic Four #21 (December 1963) - which revealed that, following WWII, Fury became a top CIA Agent. However, two years later, the character would be reworked again for Strange Tales #135 (August 1965), which laid groundwork for a modern Fury (read: the blue and white-clad S.H.I.E.L.D. operative), the version that would turn up throughout the Marvel print universe for decades.
Quicksilver
First Appearance: The X-Men #4 (March 1964)
Longtime comic book fans are, likely, already aware of complicated copyright issues that allow both Marvel Studios and 20th Century Fox to use the Quicksilver and Scarlet Witch characters - since both heroes were, at one point, instrumental to X-Men and Avengers storylines. Despite convoluted movie rights, the comic book Pietro Maximoff's history in print is much more straightforward, debuting in The X-Men #4 (March 1964) as part of the Brotherhood of Evil Mutants - after his father, Magneto, recruits Quicksilver and his sister to the pro-Mutant cause.
When Magneto disappears, the pair decide to turn their evildoing ways around - ing the Avengers (in Avengers #16 - May 1965). Nevertheless, despite a general allegiance to The Avengers and X-Men teams, Quicksilver remained a wild-card, refusing to follow orders in certain situations, leading to numerous crossover appearances (in Fantastic Four and the Inhumans, among others) as well as solo spinoff stories - where Quicksilver forged his own way through the Marvel universe.
Scarlet Witch
First Appearance: The X-Men #4 (March 1964)
Debuting in the same comic book as her brother (The X-Men #4), Scarlet Witch's print appearances run parallel with Quicksilver for years. Yet, where Pietro begins to move from team to team, aiding and antagonizing different groups within the Marvel Universe, Wanda Maximoff remained a staple of Avengers stories for decades - even marrying fellow Avenger, Vision, in Giant-Size Avengers #4 (June 1975).
Throughout her time in print, subsequent writers significantly expanded Scarlet Witch's power set - making her one of the most dangerous characters in the Marvel Universe. As a result, Wanda was instrumental in several key storylines, involving alternate realities and parallel universes, that connected the X-Men, Avengers, and Inhumans arcs, among others - many of which could one day be adapted for the big screen (studio copyright issues notwithstanding), including: Avengers Disassembled and House of M.