The essentials in 30 seconds: behind the Avengers' biggest names are characters who are just as fascinating but receive less attention. Maya Lopez, aka Echo, is a deaf and formidable warrior connected to Daredevil and Kingpin before crossing paths with Hawkeye. John Walker, aka US Agent, carried Captain America's shield for a time before becoming an antihero with questionable loyalties. Let's discover these two supporting figures in the MCU, their origins, abilities, and why they deserve your attention.
In the universe of the MCU phases, everyone knows Iron Man, Thor, or Captain America. But saga after saga, Marvel has built a galaxy of supporting characters who are just as rich, often introduced in Disney+ series before making it to the big screen. Two of them stand out in particular for their unique stories and strong connections to the Avengers' main heroes: Echo and US Agent.
These two characters have neither the cosmic powers of Captain Marvel nor Hulk's herculean strength. Their strength lies in their complex humanity, their flaws, and a journey that questions what it truly means to be a hero. Let's discover who they are, where they come from, and why they deserve a prominent place in your Marvel knowledge.
Echo, aka Maya Lopez: The Warrior Who Never Backed Down
Maya Lopez, portrayed on screen by Alaqua Cox, makes a striking debut in the MCU in the series Hawkeye before getting her own solo series, Echo. The character comes directly from Marvel Comics, where she was created in 1999 by David Mack in the pages of Daredevil.
An Origin Shaped by Tragedy
Maya Lopez is a deaf woman of Native American descent and a member of the Chippewa Cree Nation. As a child, she loses her hearing following a tumor, but develops an extraordinary ability in return: an eidetic photographic memory that allows her to perfectly reproduce any movement she observes, whether dance, combat, or a complex martial art. This purely human ability, with no supernatural origin, makes her one of the most formidable fighters in the entire Marvel universe despite having no traditional superpowers.
Her father, William Lopez, worked for Wilson Fisk, aka Kingpin, one of the greatest criminals in the Marvel universe. Fisk becomes a substitute father figure for Maya after her father's death—which she learns much later was orchestrated by Fisk himself. This revelation drives Echo to turn violently against the man she regarded as a father, in a storyline that connects her directly to the world of Daredevil.
The Connection to the Avengers Through Hawkeye
It is in the series Hawkeye that Maya Lopez first crosses paths with Clint Barton, aka Hawkeye. Having herself become a New York organized crime figure under the codename Echo, she faces Clint and his protégé Kate Bishop in a cat-and-mouse game blending personal revenge with power struggles. This narrative crossover perfectly illustrates how Marvel weaves connections between its Disney+ series and the broader Avengers universe. Longtime fans will also recognize her formidable style in our Captain America figurine collection, as the world of supporting characters intertwines with that of the first Avenger.
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View productA Disability Transformed into a Narrative Strength
What makes Echo particularly memorable in the MCU landscape is the way Marvel Studios integrated the character's deafness without ever making it a mere decorative element. The series uses American Sign Language (ASL) organically, and certain scenes are designed visually to immerse viewers in Maya's sensory perception. This is rare representation in the superhero landscape and one of the most highly praised aspects of the series Echo.
US Agent, aka John Walker: Captain America's Shadow
If Echo embodies a heroine with complex morals, John Walker, played by Wyatt Russell, represents the flip side of the Captain America myth. Introduced in the series The Falcon and the Winter Soldier, this character explores a fascinating question: what happens when you give America's most symbolic shield to someone who is not worthy of it?
A Decorated Soldier Thrust into the Spotlight
John Walker is a decorated former soldier who received the Medal of Honor for his actions in Afghanistan. When Steve Rogers hangs up the shield at the end of Avengers: Endgame, the US government chooses Walker over Sam Wilson to become the official new Captain America, a political decision that deeply upsets Sam and Bucky, the natural heirs to the costume in the public’s eyes.
Unlike Steve Rogers, Walker never received the super-soldier serum when he put on the costume. He has only his military training, his shield, and immense pressure to live up to a symbol he never truly deserved in the public’s eyes. This pressure, combined with unresolved wartime trauma, sends him into a destructive spiral that culminates in a now-iconic scene: the brutal public execution of a member of the Flag Smashers with the shield, an act that betrays everything Captain America stood for.
From Fallen Captain America to US Agent
Stripped of his title after the incident, John Walker finds himself alone, rejected by the establishment that had nevertheless chosen him. It is the government itself, through Val (Julia Louis-Dreyfus), a shady figure linked to the Thunderbolts and more obscure plans, that offers him a second chance under a new name: US Agent. Equipped with a black and silver suit far more discreet than Captain America’s flamboyant costume, he becomes an agent with more ruthless methods, ready to carry out missions that the traditional Avengers would refuse.
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View productAn antihero with ambiguous loyalties
What makes US Agent fascinating is precisely his moral ambiguity. Unlike the traditional Avengers, he does not defend a selfless ideal: above all, he seeks personal redemption and the recognition that were taken from him. This gray area makes him a perfect candidate to join the Thunderbolts, the team of antiheroes and repentant villains assembled by the US government, alongside characters such as Yelena Belova and Ghost. US Agent finally finds his place there: neither entirely hero nor entirely villain, but a loyal pawn to those who give him orders.
Powers and skills: two radically different approaches
| Character | Main skills | Origin of powers |
|---|---|---|
| Echo / Maya Lopez | Eidetic memory, mastery of every observed martial art, close-quarters combat | No supernatural powers — exceptional human ability |
| US Agent / John Walker | Elite military training, shield handling, combat tactics | No super-soldier serum — purely human training |
This common ground is far from insignificant: neither Echo nor US Agent has superpowers in the strict sense. Unlike Thor or the Scarlet Witch, these two characters owe everything to their determination, training, and resilience in the face of adversity. That is precisely what makes them so relatable and human in the eyes of the public: their heroism (or anti-heroism, in Walker's case) is never given; it is always earned through sweat and sometimes blood.
For fans who like to accessorize their everyday lives with the colors of their favorite characters, our Avengers keychain collection and our Avengers mug collection offer numerous items linked to Captain America's allies, such as the War Machine 3D mug, a perfect nod to the military world John Walker comes from.
Why take an interest in these lesser-known characters?
As Avengers: Doomsday and the MCU's next phase approach, Marvel Studios is multiplying the connections between its series and films. Characters introduced on Disney+ such as Echo and US Agent are highly likely to resurface in major upcoming productions, alongside more established allies like War Machine and Winter Soldier. Taking an interest in these supporting figures today means getting a head start on Marvel's next major storylines.
This is also an opportunity to discover stories that are more nuanced than the classic battle between good and evil. Echo explores revenge, family legacy, and resilience in the face of disability. US Agent explores the price of symbolism, the pressure of public opinion, and the limits of institutional heroism. Two themes that are rare in a genre that is sometimes too black-and-white.
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View productHow to discover these characters in the right order
To fully appreciate John Walker's arc, it is highly recommended that you watch the entire Falcon and the Winter Soldier series, which takes place just after Avengers: Endgame in the MCU chronological order. For Echo, the Hawkeye series is an excellent starting point before diving into her solo series, which explores her past and complex relationship with Kingpin in greater depth.
These two journeys perfectly illustrate the richness of the modern MCU: characters who have existed in the comics for decades, but who are now finding a new life and particular resonance thanks to the Disney+ series, before potentially joining the major Avengers gatherings to come. In the meantime, you can already treat yourself to a POP MART War Machine figure, a loyal ally who also orbits these supporting characters, or an Avengers phone case featuring your favorite hero.
Frequently Asked Questions
Is Echo directly connected to the Avengers?
Not officially yet, but her appearance in the Hawkeye series connects her to Clint Barton and Kate Bishop, two figures who regularly orbit the Avengers. A future appearance in a team-up film cannot be ruled out.
Does US Agent have the super-soldier serum?
No, unlike Steve Rogers, John Walker never received the original serum. However, he uses an unstable experimental serum provided by the government, which partly explains his violent outbursts.
Why is Maya Lopez deaf in the MCU?
This characteristic faithfully reflects the original comics created by David Mack in 1999. Marvel Studios chose to retain it and portray it with deaf actress Alaqua Cox, for authentic and respectful representation.
Will US Agent join the Thunderbolts on the big screen?
Yes, John Walker is part of the Thunderbolts team alongside Yelena Belova, Ghost, and Red Guardian, a group of antiheroes assembled for high-risk missions that the official Avengers cannot publicly undertake.
Do you need to know the comics to understand these characters?
No, the Disney+ series were designed to be accessible to newcomers while respecting the essential origins from the comics to satisfy longtime fans.
Going further into the Avengers universe
- Falcon, Sam Wilson: the new Captain America — the true heir to the shield facing John Walker.
- Winter Soldier: Bucky Barnes's troubled past
- Hawkeye, the Avengers' best marksman — to understand the first face-off with Echo.
- Top 10 Avengers figurines to collect
- Avengers character guide — the store's reference page.
Key takeaways
Echo and US Agent prove that the MCU's greatest stories are not limited to its most famous heroes. Maya Lopez embodies rare resilience and human strength without superpowers, while John Walker questions the true price of a symbol like Captain America. Two opposing paths, but equally captivating, that deserve their place in your Marvel culture. To continue this discovery, head to our Avengers figurines collection, our Avengers backpacks collection, or our selection of Avengers T-shirts to show your passion for these heroes, famous or overlooked, every day.