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The Avengers: Earth's Mightiest Heroes
The Avengers Earth's Mightiest Heroes logo.svg
Genre Action
Science fantasy
Developed by Ciro Nieli
Joshua Fine
Christopher Yost
Voices of
Narrated by Alex Désert (opening narration; season 2)
Theme music composer Guy Erez
David Ari Leon
Opening theme "Fight As One"
by Bad City
Ending theme "Fight As One" (instrumental)
Composer(s) Guy Michelmore
Country of origin United States
Original language(s) English
No. of seasons 2
No. of episodes 52 (list of episodes)
Executive producer(s)
  • Alan Fine
  • Eric S. Rollman
  • Dan Buckley
  • Simon Philips (season 1)
  • Jeph Loeb (season 2)
  • Joe Quesada
  • Stan Lee
Producer(s) Dana C. Booton
  • Jonathan Polk
  • Steve Ingram
  • George Rizkallah
  • Robert Walz
Running time 22 minutes (TV episodes)
5 minutes (micro episodes)
Production company(s) Film Roman
Ingenious Media (episodes 14–26)
Marvel Animation
Distributor Disney–ABC Domestic Television
Original network Disney XD
Original release September 22, 2010 (2010-09-22) – November 11, 2012 (2012-11-11)
Preceded by The Avengers: United They Stand
Followed by Avengers Assemble

The Avengers: Earth's Mightiest Heroes is an American superhero animated television series by Marvel Animation in cooperation with Film Roman, based on the Marvel Comics superhero team the Avengers. The show debuted on Disney XD and online in the fall of 2010, starting with a 20-part micro-series that were later broadcast as five television episodes. In the second season, it was one of the inaugural shows of the Marvel Universe programming block alongside Ultimate Spider-Man.

The series initially features a team based on the roster for the original Avengers, composed of Iron Man, Giant-Man, Hulk, Thor, and Wasp. The team is later joined by Captain America, Black Panther, and Hawkeye in the first season, and Ms. Marvel and Vision in the second season. In terms of overall tone and style, the series is based principally on the original stories by Stan Lee and Jack Kirby. The series also uses material from all eras of the comic's run as well as other sources, such as the Marvel Cinematic Universe.

The series ended on November 11, 2012 and was replaced by Avengers Assemble.


The series features the adventures of Iron Man, Captain America, Thor, Hulk, Ant-Man, the Wasp and all the members of the Avengers as they fight various supervillains and other threats in order to protect Earth.


Breakout (The Avengers- Earth's Mightiest Heroes)
Ant-Man/Giant-Man, Iron Man, the Hulk, Wasp and Thor

Season one

As 75 of the world's most dangerous super-villains are mysteriously freed from the Vault, the Cube, the Big House, and the Raft, five of Earth's mightiest heroes assemble a crime-fighting alliance called the Avengers. The Avengers team is composed of Iron Man (Tony Stark) as de facto team leader, Ant-Man/Giant-Man (Hank Pym), the Hulk (Bruce Banner), Thor, and the Wasp (Janet Van Dyne). Captain America (Steve Rogers) joins the team later after being found frozen in ice while the team is looking for Hulk. Future members of team for season one include Black Panther (T'Challa) and Hawkeye (Clint Barton). In the season finale, it is revealed that Thor's stepbrother Loki was responsible for the breakout so that Amora the Enchantress and Skurge the Executioner could build his Masters of Evil to defeat Thor.

Season two

Season two uses cold openings and remixes the opening theme song "Fight As One", replacing the original singing vocals with that of Nick Fury, voiced by Alex Désert, introducing the show's concept and main characters.

Season two depicts the Avengers as they track down the remaining members of the Masters of Evil and end up facing the invasions of the Skrulls in the first half of the season and the Kree in the second half. The Avengers are unaware that Captain America had been replaced at the end of season one by a Skrull operative as part of their systematic infiltration of Earth. The season also alludes to a developing storyline that Surtur, now free of his imprisonment in Muspelheim, is slowly gathering his strength to oppose the Avengers as a prelude to Ragnarök. Ms. Marvel joins the team, followed by the Vision. Many other characters from the Marvel Comics universe make appearances, such as Spider-Man, Wolverine, Scott Lang (the second Ant-Man) and his daughter Cassandra, Heroes for Hire, Doctor Doom, Crossfire, Thaddeus E. "Thunderbolt" Ross (in both his human and "Red Hulk" forms), the Guardians of the Galaxy (composed of Star-Lord, Rocket Raccoon, Groot, Quasar and Adam Warlock), Quake, Beta Ray Bill, the Falcon, the Winter Soldier, and Galactus and his heralds. Series producers Joshua Fine and Christopher Yost revealed that certain returning characters would adopt their Ultimate Universe counterpart costumes for the second season, such as Nick Fury appearing more like Ultimate Nick Fury with a shaven head and goatee, and the Skrull operative posing as Captain America wearing the Ultimate Captain America costume and wielding an energy shield. The second-season premiere, titled "The Private War of Dr. Doom" (featuring Dr. Doom and the Fantastic Four), was shown to audiences at both the 2011 San Diego and New York Comic Cons, as well as the 2012 WonderCon in Anaheim. It premiered with the two-part Ultimate Spider-Man pilot on April 1, 2012.

Episode list

Season Episodes Originally aired
Season premiere Season finale
Micro-series 20 September 22, 2010 (2010-09-22) October 11, 2010 (2010-10-11) (online)
October 15, 2010 (2010-10-15) (United States)
1 26 October 20, 2010 (2010-10-20) April 12, 2011 (2011-04-12) (Australia)
June 26, 2011 (2011-06-26) (United States)
2 26 April 1, 2012 (2012-04-01) June 28, 2012 (2012-06-28) (Australia)
May 5, 2013 (2013-05-05) (United States)


Principal cast


  • Joshua Fine – Supervising Producer
  • Vinton Heuck – Director
  • Sebastian Montes – Director
  • Jamie Simone – Casting and Voice Director
  • Christopher Yost – Story Editor, Writer


Marvel announced in October 2008 that its Marvel Animation division and the outside studio Film Roman would produce an Avengers animated TV series, The Avengers: Earth's Mightiest Heroes!, for planned broadcast in 2010. Fifty-two episodes have been confirmed as being in production. The show's executive producers include Simon Philips and Eric S. Rollman. Joshua Fine serves as supervising producer and Christopher Yost serves as story editor on the show. A 20-part micro-series debuted on September 22, 2010, on Disney XD, focusing on each hero's backstory and the events that lead to the main series. The series started airing on Marvel's sister network, Disney XD in the United States on October 20, 2010, and on Teletoon in Canada on October 22, 2010, in English and March 2011 in French. According to Jeph Loeb, season 2 would presumably begin around October 2011, same as season 1 and producer Josh Fine tweeted in April 2011 that 13 episodes have been completed. At the 2011 New York Comic-Con, Marvel TV director, Jeph Loeb contradicted his earlier statement of season 2 launch in late 2011. Loeb announced at the panel at New York Comic-con that "Avengers Season 2 will be coming in early 2012 (to coincide with Ultimate Spider-Man)." This date would later get clarified to April 1, 2012. Dong Woo Animation, Lotto Animation and Noxxon Enterprise has contributed some of the animation for this series.

Future of series

The Avengers: Earth's Mightiest Heroes was not renewed for a third season and was succeeded by a new Avengers show called Avengers Assemble in 2013. On Saturday, July 14, 2012, at the 2012 Marvel Television Presents panel at San Diego Comic-Con, Jeph Loeb, Head of Marvel Television, said of the relationship between the two shows:

We're not in any way saying Earth's Mightiest Heroes never happened. You will see an epic conclusion. And then you'll say, 'Oh, what's next?'

The only voice actors to reprise their roles for Avengers Assemble are Fred Tatasciore and James Matthis III as the Hulk and Black Panther, respectively. Additionally, Drake Bell returned to voice Spider-Man for guest appearances, while the other members of the team share their voices with their counterparts in the separate Ultimate Spider-Man series.


See also

Kids robot.svg In Spanish: The Avengers: Earth's Mightiest Heroes para niños

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