Avenger is an American animated television series which ran from 2001 to 2006. It is part of the Marvel animated universe. It is based on the Avengers and associated comic book characters published by Marvel Comics.

It was also the final series set in the long-running Marvel Animated Universe known as Earth-92131, which started with X-Men: The Animated Series in 1992.


Season 1

No. in series No. in season Title
1 1
As alien invaders who were accidentally awakened on Tarnax IV begin to take over the Earth, Captain America and Iron-Man rescue Scarlet Witch, who telepathically summons Thor, Falcon, The Hulk, and Wasp to help stop the invasion.

Captain America gathers everyone at the newly built Avengers Tower, funded by Iron Man, and asks them to be part of a team, which he dubs the Avengers.

  • Captain America mentions that the Beyond transported him back to Earth after the events of "Secret Wars".
2 2 "Trial of the Hulk"
Hulk surrenders himself to robotic Hulkbusters to stand trial for the destruction of Gamma Base. The rest of the Avengers discovers that General Ross helped the Hulkbusters frame the Hulk.

Absent: Iron Man and Thor

3 3 "The Enemy Below"
A nuclear submarine is attacked in the Atlantic, forcing the Avengers to come face-to-face with Namor the Submariner and his Atlantean army. Namor follows Captain America's advice to go to New York and take his problems up with the various governments of the world. When a mercenary, Bullseye, attacks Namor, the Avengers step in.

Namor discovers that Meranno was behind the attack. Meranno takes Namor and places him on a cliff over a vein of molten lava, leaving them to die.

Absent: Wasp and Falcon

4 4 "Masters of Evil"
Exposed as a criminal, sentenced to prison, Wilson Fisk AKA the Kingpin escapes and assembles a supervillain team, the Masters of Evil, to take on the Avengers. The gang consists of Sabretooth, Titania, the Mandarin, Scorpion, Doctor Doom and Abomination 

The Green Goblin also becomes part of the team, on his own initiative. Even with their combined power, the gang proves no match for Iron Man's guile.

5 5 "Hela"
Sorcerer Baron Mordo threatens to keep the people of Thor's homeworld, Asgard, transformed into stone if he does not gather artifacts for him. He uses the artifacts to release Hela from Hel. The Avengers succeeds in banishing Hela and her minions, but Thorn is exiled from Asgard for allowing the Avengers to help.

Absent: Hulk and Falcon

6 6 "Mojo"
Captain America and Scarlet Witch are abducted by extraterrestrial slave traders and sold to the Mojoverse, whose despotic ruler Mogo pits warriors against each other in mortal combat in an enormous colosseum. Hulk and Falcon set out to rescue them.

Absent: Iron Man, Wasp and Thor

7 7 "Wakanda"
Wasp and Hulk uncover a plot by Man-Ape to destroy Wakanda. Man-Ape has a device that allows him to control the minds of others, and uses stolen Wakandan technology to conquer all of New York City and put its inhabitants under his control.

Locked inside the force field-shielded city, Wasp and Hulk work together with Black Panther to destroy the enemy from within before Man-Ape carries out his revenge.

Absent: Captain America

8 8 "Loki"
A rogue Asgardian named Loki, adopted son of Odin and brother of Thor, who was born of the Frost Giants and raised in Asgard, gathers several supervillains - Titania, the Mandarin, the Scorpion, the Abomination and Silver Samurai - and sets out to kill the most of the world's population to make the world fit for Asgardian rule.
9 9
The Avengers accidentally transported to a parallel world and discover an alternate Avengers team, consisting of an alternate Captain America and Namor as well as an android Human Torch, Black Widow/Claire Voyant, Miss America and Vision/Aarkus with Rick Jones dressed as Bucky Barnes. While battling supervillains in this other dimension, they discover that the world is just an elaborate illusion.

Absent: Thor

10 10 "Ghost Rider"
Ghost Rider seeks the assistance of the Avengers in preventing the Philosopher's stone from falling into the hands of his ancient enemy, Mephisto.

Absent: Hulk, Falcon and Captain America

11 11 "Fantastic Four"
The Avengers team up with the Fantastic Four.
  • Cam Clarke, Gail Matthius, Quinton Flynn and Patrick Pinney reprise their roles as Mr. Fantastic, Invisible Woman, Human Torch and the Thing from Spider-Man: The Animated Series.

Absent: Wasp and Thor

12 12
The Avengers returns from a mission to find the world transformed; a result of villain Selene feeding information to her past self in the 1940s, allowing her to help take over the world during World War II. The Avengers travel back in time themselves to stop him (though Captain America stays behind because sending him back to a time where he already exists might create a paradox), and fight Nazis alongside WWII-era heroes the Howling Commandos, the younger Captain America before he was trapped in the dimensional machine, the Six American Warriors, Bucky Barnes and Peggy Carter.

Season 2

No. in series No. in season Title
13 1 "Thanos"
The Avenger are tricked into defending Titan, Thanos' homeworld, against the threat of Ultron. The team solicits the aid of Drax the Destroyer. The resulting destruction of Ultron's base is thought to be the end of Thanos.

Absent: Wasp and Hulk

14 2 "Super-Adaptoid"
The Kingpin manipulates a powerful android named Super-Adaptoid with the ability to copy any superpower, posing as a father figure to it. Meanwhile, Thor questions the nature of humans.
15 3 "Nightmask"
Small time crook Keith Remsen volunteers for an experimental treatment while in prison. While the authorities are distracted by a mass prison break led by Volcana, Mysterio, Scorpion, Abomination and Molten Man, Keith Remsen overdoses on the treatment and becomes the dream-controlling Nightmask. Nightmask takes telepathic control of most of the Avengers in their sleep, leaving only Iron Man and Scarlet Witch. The Avengers become trapped in their dreams and unable to wake up. Scarlet Witch tries to force them awake, while Iron Man goes to confront Nightmask.

Absent: Thor

16 4
Thor befriends the princess of Symkaria, a jet-setting party girl who is reluctant to end her wild ways to get married. Unfortunately, her fiancé is Fabian Cortez who is possessed by Apocalypse, and he already has plans for both the throne and the Avengers. Thor and Iron Man must stop Cortez, while Wasp, Hulk, and Scarlet Witch take out Cortez's new Rail Gun satellite.
  • Lawrence Wayne reprises his role as Fabian Cortez from X-Men: The Animated Series, though he technically voices Apocalypse who possesses Cortez this time.

Absent: Falcon and Captain America

17 5 "Malekith the Accursed"
Volstagg crashes to Earth, seeking Thor's help to rescue other members of the other Asgardian comrades from would-be conqueror Malekith the Accursed. He also explains that Thor's former lover, Sif, is one of the captives.

After facing Malekith and losing, Thor has to retrain himself to use his hammer to help the Avengers end Malekith's reign. Wasp, Falcon and Scarlet Witch accompany Volstagg to Malekith's planet to help the Asgardians stop him.

Absent: Iron Man, Captain America and Hulk

18 6 "The Squadron Supreme"
In an alternate reality, the Avengers (called the Squadron Supreme) launches an assault on the White House, where Captain America kills President Wilson Fisk in retaliation for Wasp's murder by Fisk. Two years later, the Squadron Supreme rule the planet with an iron fist.

Iron Man discovers the dimension where the normal Avengers live. The Squadron cross over and trap the Avengers in a force field. They then take the Avenger's places, attempting to make this Earth like their own.

19 7 "Blackheart"
An ancient lunar crystal is discovered. Unbeknownst to the Avengers, it harbors a demon called Blackheart and allows him to possess its bearer. Blackheart contaminates almost all of the Avengers, except for The Wasp, who must save the Avengers from a weapon that will destroy both the Sun and the Earth.

Absent: Iron Man

20 8 "Defenders"
Doctor Strange, Namor, Silver Surfer and Valkyrie rescue Thor and the Hulk, intent on using recruiting them to help battle an ancient evil.

Absent: Captain America, Iron Man, Wasp, Scarlet Witch and Falcon

21 9
While the Avengers are quarreling about the value of mutual trust and teamwork, Man-Ape organises a Masters of Evil composed of Man-Killer, Emma Frost, Abomination, Absorbing Man, the Mandarin and Sandman.

The Masters captures most of the Avengers, but Scarlet Witch frees the others, and the Masters are defeated in front of a crowded stadium.

22 10 "Hereafter"
A band of supervillains, (composed of Black Dwarf, Electro, Wizard and Swarm) team up. When they attack New York, Wizard shoots an experimental weapon at Iron Man and an injured Thor, but Captain America sacrifices himself to save them and is seemingly vaporised.

The Avengers attempt to cope with the loss of Captain America. Eventually Deadpool arrives at the Avengers Tower and nominates himself as Captain America's replacement, but does more harm than good.

Captain America wakes up 30,000 years in Earth's future. He encounters a humbled Selene, the only human (well, technically mutant) left alive after an attempt at world domination staged a few months after Captain America's disappearance.

Captain America discovers Selene's time machine (which she previously used to help the Nazis win WWII) but Selene reminds him that it doesn't allow one to exist at the same time as their previous self as it would cause a paradox. Captain America, however, can go back to a time where he doesn't exist, i.e. after his death.

With knowledge of past Selene's crime, he goes back in time and reunites with the Avengers. In the future, the desolate wasteland is replaced with people and a city as a thankful Selene disappears from existence.

  • Philip Proctor reprises his role as Electro from Spider-Man: The Animated Series. Its explained that the Wizard released Electro from time loop he and Red Skull were trapped in.
23 11
The Green Goblin takes over TV stations in Las Vegas, announcing that he has placed a series of bombs that will destroy the Strip in 22 minutes and 51 seconds if they are not stopped by the Avengers. With the whole world watching, the Avengers must first get past the Green Goblin's own superteam, Meltdown, Rocket, Magma, Sunspot and Grimfang. However, the threat imposed by the Green Goblin is not as simple as it seems, and Iron Man must track down his location to stop him.

  • Meltdown, Rocket and Grimfang are all based on Boom Boom, Cannonball and Wolfsbane, all of whom appeared in X-Men: The Animated Series.
24 12 "Kree"
After Earth is attacked by a Skrull battleship, the Avengers are aided by an army of Kree from Kree-Lar. The Kree offer to help Earth build a shield to defend against the Skrulls, but Iron Man discovers that this is just a ruse.

Season 3

No. in series No. in season Title
25 1 "Initiation"
The Avengers expands their operations, enlisting new recruits from across the globe. The newest is Hawkeye, who has repeatedly refused to join the Avengers. He is teleported to the rebuilt Avengers Tower.

Deciding again not to join, he hitches a ride back to Earth with Hulk, Quasar and Ms. Marvel, who have been sent on a mission to stop a giant, uncontrolled, nuclear-powered defense robot in an unnamed Asian country that exists in self-imposed international isolation.

26 2
Iron Man and Thor find Captain America held captive by Mojo in the Fortress of Solitude and dreaming of an idyllic life with Peggy Carter, due to the effects of a wish-fulfilling parasitic plant Mojo has used.
27 3 "Blackheart Returns"
Blackheart uses his magic to summon an army of demons to take over Hell. Mephisto is forced to recruit Captain America, Iron Man, Thor and the Hulk to fight him.
28 4 "Loki Returns"
Thor teams up mutant brothers Cyclops and Havok to stop Loki's plans to escalate a civil war in Symkaria by using a war machine called the Destroyer.
29 5 "Enchantress"
The centuries-old enchantress Enchantress transforms Thor into a pig as revenge against Thor's father. Iron Man and Scarlet Witch work together to return her to normal, while Karen the Hunter attempts to find the "Thor" before he's butchered at a slaughterhouse.

30 6 "I Really, Really, Really Hate Clones"
Spider-Man, Hawkeye and Moon Knight investigate Spider-Man's disturbing dreams. They discover that Miles Warren created a clone of Spider-Man named Kaine.
  • The episode continues from the same series' plot line of Warren planning to clone Spider-Man.
31 7
The Avengers battle Loki in the background, while the narrative follows Wonder Man as he attempts to close a walking black hole while he's supposed to be on "crowd control".
32 8 "Super-Adaptoid Returns"
The Avengers attempts to keep the Super-Adaptoid from taking revenge against the recently reformed Wilson Fisk. Fisk and the Ant-Man attempt to create a weapon to neutralise Super-Adaptoid's nanotechnology. Their victory is largely assisted by Doctor Strange
33 9 "Kaine and His Amazing Friends"
The Avengers meets the Amazing Friends, a popular group of young heroes. The Amazing Friends discover they are the results of a government experiment in creating superhumans and only have a short time to live. In frustration and anger, all of them except for Firestar strike out against the Avengers.

  • The Amazing Friends were based on Ice Man, Firestar, Lightwave and Videoman from Spider-Man and His Amazing Friends, with Kaine himself filling the Spider-Man role. Ice Man's clone is named Windchill, a reference to his codename as a government agent in that show.
  • Windchill is voiced by Denis Akiyama who voiced Ice Man in X-Men: The Animated Series.
34 10 "Phalanx"
Most of the Avengers battle powerful the Phalanx. They realize that the waves of self-replicating robots cannot be simply destroyed. Ant-Man shrinks himself to stop the robots from the inside.
35 11 "Dracula"
A trio of high school kids accidentally resurrect Dracula. Doctor Strange, Namor and Falcon assist the Avengers in stopping his rampage.
36 12 "Kong the Conqueror"
Spider-Man, Thor and Hulk chase Kang the Conqueror to the past, where they team up with heroes from the Old West. After defeating stolen future tech in that era, they again follow Kang to the future Neuva York of Spider-Man 2099, just in time to join that era's Avengers in a battle with a group of Green Goblins.

The time travelers are taken to the Avenger's refuge. Mayday Parker reveals that the street gang they fought against was enhanced by Kang, who led them to kill the rest of the Avengers of that era.

The combined heroes defeat the Green Goblins, and Spider-Man traps Kang in a time loop.

Season 4

No. in series No. in season Title
37 1
Songbird convinces Hawkeye to help save, Wolverine, when he is taken by Mojo to fight other warriors in his arena.
38 2
Sif solicits the Avenger's assistance to free Eitri from Titan. Scarlet Witch refuses, but Wasp decides to help out on her own.
39 3
Thor battles Mangog in the heart of a volcano. Iron Man probes the Hydra conspiracy to destroy the Avengers.
40 4 "Thunderbolts"
Songbird is revealed to be working for Hydra with her real codename being Screaming Mimi. Hydra has her, Daredevil (actually Bullseye disguised) and Mach-1 (actually the Beetle) to steal the Destroyer from the Avengers Tower.

During the mission, the villains also take Ultron's head.

41 5
Baron Mordo, imprisoned in a mirror, fools Enchantress into letting him out. He possesses the Destroyer and casts Hela out of Hel. Thor teams up with Falcon to help Hela reclaim her kingdom, at Odin's command.
42 6
Elektra is kicked out of the Avengers for attempting to murder Kingpin, the man responsible for her parents' death. She recruits Moon Knight to assist her in finishing him off while Hawkeye and Songbird attempt to thwart their efforts.
43 7
Wilson Fisk's candidacy for president moves forward as Captain Marvel appears to endorse him. Fisk manipulates Captain America, tricking him into fighting Captain Marvel. Captain America is humiliated after discovering that the bomb he defused turned out to be a generator. At the end, Iron Man reveals that Captain America had been baited by Fisk as a plot to discredit the Avengers.
44 8
When the Avengers receives a distress call, Songbird, Punisher and Black Panther investigate. The distress call turns out to be a trap set by the surviving Kree warriors, who blame the Avengers for their loss in the Kree-Skrull war.

Songbird also has to deal with her teammates' resentments for her betrayal of the Avengers, and her own lingering self-doubts.

45 9
Moon Knight discovers the records about the alternate universe Avengers who became the Masters, and Fisk's attempts to discredit the Avengers. Moon Knight is captured, and Captain America and Elektra attempt to rescue him. Almost successful, they are confronted by Quasar, who has government orders to stop them.
46 10
Wilson Fisk seizes control of the Avengers Tower's main gun to fire on Hydra, causing massive collateral damage on the city and falsely implicating the Avengers as responsible. Convinced it is an act of revenge, the government commands Kaine to attack the Avengers Tower with an army of Amazing Friends.
47 11
The founding members of the Avengers, with the exception of Iron Man, surrender to the government. In the middle of a battle between the rest of the Avengers and the army of Amazing Friends, Spider-Man and War Machine battle Kaine to keep him from destroying the Avengers Tower.

48 12
With most of the Avengers unavailable, the Avenger's founding members battle a fusion between Kingpin and Ultron. Quicksilver saves the day when he runs around the world numerous times in order to separate and defeat the Kingpin-Ultron fusion.

Season 5

No. in series No. in season Title
49 1
After Kingpin escapes from prison, Man-Ape baits him into joining the new Masters of Evil with a piece of Ultron's technology. Kingpin and Magneto steal the Spear of Destiny from the Howling Commandos despite the attempts of Wasp, Human Torch, Falcon and the last Howling Commando, Dum Dum Dugan, to stop them.
50 2
Falcon agrees to meet with Warren Worthington III, who has discovered Kree artifacts from ancient Egypt. A villain resembling Archangel attempts to steal the artifacts, which results in the destruction of the tomb.
51 3 "Chaos at Attilan"
Ms. Marvel, Captain America and Hulk help Blackbolt liberate Attilan from Maximus, the Destroyer and Black Tom Cassidy.
52 4
Thor protects the body of the Amenhotep IV from members of the Masters of Evil who want to reverse engineer invulnerability powers from it.
53 5
Drax the Destroyer attempts to understand Tony Stark's antics as Wasp and Iron Man battle four of Iron Man's old enemies, Dreadknight, Blizzard, Blacklash, Grey Gargoyle, Hypnotia and Whirlwind, who attack the opening of a museum in Iron Man's honor.
  • The appearance of Dreadknight, Blizzard, Blacklash, Grey Gargoyle, Hypnotia and Whirlwind are a reference to their regular appearance as enemies in Iron Man series.
54 6
Iron Fist convinces Captain America, Iron Man and Thor to help him retrieve the souls of a mystic order of monks, stolen by the Masters of Evil. They force the Masters to retreat from Wakanda which they had taken over.

At a general meeting in the Secret Society's HQ, Kingpin shoots Man-Ape, taking over leadership of the Masters of Evil.

55 7
General Thunderbolt Ross from Hydra steals the "Captain America" super-soldier serum and injects it into himself to "protect" the world from threats like the Hulk. With the more powerful Avengers busy, Hawkeye leads, Black Knight, Punisher, and Bucky Barnes against him.

Ross only stops short of killing Black Knight when a civilian points out that the illogic of Ross' position: his goal was to rid the world of superhumans, but he has superpowers and his opponents do not.

56 8
Magic and science collide, swapping the minds of Kingpin and Quicksilver. The Avengers attempt to contain a super-speed powered Kingpin on the Watchtower, while Quicksilver tries to hide the change from the Masters of Evil.
57 9
Mojo kidnaps Elektra and Songbird and sets them against a mind-controlled Silverclaw and Jean Grey, and then the four must contend against Ms. Marvel.

58 10
Ms. Marvel, Hulk and Hawkeye are kidnapped and taken to the 31st Century by Mainframe and Charlie-27 of the Guardians of the Galaxy. Here Ms. Marvel embarks on her very last mission — a battle against the Badoon and the mind-controlled Guardians.
59 11 "Enemy Without"
Archangel captures Hulk, Falcon and Angel. Archangel is shown to be a villain created from Angel's mind who was released when Apocalypse separated him them. Angel defeats Archangel and leaves.
60 12
Kingpin and the Secret Society refit their headquarters and fly into deep space in an attempt to reconstitute Ultron. En route, Enchantress frees Man-Ape, who leads other disaffected villains against Kingpin and his supporters.

Kingpin uses his intellect and resourcefulness to counter his various adversaries' powers. Kingpin then uses Enchantress' magic in an attempt to reconstitute Ultron, but instead resurrects Thanos (with Ultron enhancements), who plans to lay waste to Earth.

Thanos returns to Titan and stops a war between the two factions of his Elites fighting for power, and reveals to them his plans of an invasion of Earth. Kingpin and the surviving Masters of Evil members turn to the Avengers for help.

61 13
The Avengers teams up with the remnants of the Masters of Evil to repel Thanos' full-scale invasion of Earth. As the Avengers and Masters of Evil members battle the Titan fleet on the other side of the planet, Captain America, Iron Man, and Kingpin take on Thanos atop the Daily Bugle building. Captain America seemingly dies in the battle but is revealed to have been transported to the year 2098.
62 14 "Epilogue"
In the future of Spider-Man 2099, an older Miguel O'Hara teams up with Wolverine and Captain America 2099 to infiltrate Alchemax to rescue Laura Kinney, a Wolverine clone they've created as a weapon. Wolverine tells Miguel about how a new X-Men team he's formed.
  • The episode is the finale for the series.
  • It is revealed that Captain America 2099 is the original Captain America transported into the future.

Voice Cast

Main Cast

  • Robert Hays as Iron Man/Tony Stark
  • David Hayter as Captain America/Steve Rogers
  • John Rhys-Davies as Thor/Donald Blake
  • Neal McDonough as Dr. Bruce Banner
    • Lou Ferrigno as Hulk
  • TBA as Wasp/Janet van Dyne
  • Susan Roman as Scarlet Witch/Wanda Maximoff
  • TBA as Falcon/Sam Wilson

Recurring Cast

  • TBA as Bullseye
  • TBA as Man-Ape
  • TBA as Loki
  • Roscoe Lee Brown as Kingpin/Wilson Fisk
  • TBA as Ultron
  • TBA as Mephisto
  • TBA as Titania
  • Tony Jay as Baron Mordo
  • John Vernon as Doctor Strange
  • Martin Landau as Scorpion/Mac Gargan
  • TBA as Blackheart
  • Richard Moll as Abomination
  • Neil Ross as Green Goblin/Norman Osborn
  • TBA as Thanos
  • Robert Ito as Mandarin
  • TBA as Selene
  • TBA as Drax the Destroyer
  • TBA as Super-Adaptoid
  • TBA as Hela
  • Peter Wildman as Mojo
  • James Warwick as Namor the Submariner
  • TBA as Odin
  • TBA as Black Panther
  • TBA as Elektra
  • TBA as Songbird
  • John Beck as Punisher/Frank Castle
  • TBA as Quasar
  • TBA as Spider-Man 2099/Miguel O'Hara
  • TBA as Enchantress
  • TBA as Ant-Man
  • Cathal J. Dodd as Wolverine
  • Stephen Ouimette as Angel and Archangel
  • TBA as Hawkeye
  • Christopher Daniel Barnes as Spider-Man and Kaine
  • Roscoe Handford as Ms. Marvel
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