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Eric Masterson (Earth-616)

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Mighty Thor Vol 2 2 Marvel '92 Variant Textless
Information-silkReal Name Eric Kevin Masterson
Information-silkCurrent AliasThunderstrike
Information-silkAliasesThor, "Sparky, the Lightning Kid"
Information-silkRelativesMarcy Masterson Steele, (ex-wife), Kevin Masterson (son), unnamed parents
Information-silkAffiliationAvengers, Thor Corps, Asgard, Secret Defenders, Legion of the Unliving
Information-silkBase Of OperationsAvengers Mansion
Information-silkIdentitySecret Identity
Information-silkMarital StatusDivorced
Information-silkOccupationArchitect, adventurer
Information-silkEducationMaster's degree in architecture
Information-silkHeight5' 10" (6'6" transformed)
Information-silkWeight160 lbs (73 kg) (640 lbs transformed)
Information-silkUnusual FeaturesAs Thunderstrike, Eric Masterson possessed a physical form nearly identical in appearance to Thor. During the time he wielded Mjolnir, he maintained a beard to disguise the differences. He still retained the beard as Thunderstrike.
Information-silkOriginGained his powers by connecting him with Thor and later using Mjolnir and later the Thunderstrike Uru Mace.
Information-silkPlace of BirthLong Island, New York
Information-silkCreatorsTom DeFalco, Ron Frenz
First AppearanceAppearance of Death
Thor Vol 1 #391
(Eric Masterson)
Thor Vol 1 #408
(Merged With Thor)
Thor Vol 1 #432
(Thor II)
Thunderstrike Vol 1 #1

Quote1 The name! Quote2
-- Thunderstrike src

Early Life

Eric Masterson was working as an Architect in New York when he befriended a construction worker called Sigurd Jarlson. He was had a son with Marcy Masterson named Kevin, but the two later divorced. The construction site he was working at was attacked by Mongoose, but Spider-Man's arrived and drove him away. However but during the fight, Masterson was injured by falling girder, but Sigurd who was revealed to be Thor rushed him to the hospital.[2] Eric was a live but injured and was now on crutches. Sigurd and Jerry meet up with Eric and tag along on a construction bid, but the plant is attacked by Quicksand.[3] Thor was able to transport the plant to a dead world before it could explode.[4]He returned to work with Sigurd and Jerry.[5]

Quicksand and Mongoose attack again.[6] Brute Benhurst is given the Bloodaxe, transforming him into the new Executioner. Thor battles this new warrior, but realizes that it’s not really Skurge when he backhands young Kevin. Thor unleashes his full might, and defeated him.[7] Mongoose kidnapped Eric to draw Thor out. Thor sensed the trouble through the bond he shared with Kevin’s toy hammer. Odin sent Negative Zone Portal. When he arrives at Eric’s apartment, he is given one word to go on; "Wundagore".[8] Moongoose master was revealed to be Count Tagar who wanted Thor to bring Hercules and the High Evolutionary back from the Black Galaxy. Thor agreed to help and Eric accompanied him.[9]

Black Galaxy

In the Black Galaxy they battled strange organisms that Thor recognizes as existing inside the Celestial he fought. They make their way to the Null Bomb the Colonizers sent to destroy the Black Galaxy, and Thor redirected the blast. On top of the mountain summit, they discover another Celestial along with Hercules and the High Evolutionary trapped inside strange containers. A surge of energy builds and they are all witnesses to the birth of a new Celestial. The Celestial sends them all away, restoring everyone in the process. [10] #

Merged With Thor

They returned home, but they are attacked by Mongoose, Eric lifts Mjolnir, but receives a fatal blast before he can strike. Hercules managed to drive Mongoose off and Thor pleads to Odin to spare Eric. Odin then merged the two, while each retains their unique personalities.[11] Now bonded as one they battled Doctor Doom.[12] They faced Juggernaut[13] and Ulik[14]

Being merged with Thor was ruining Eric's life he lost his client and his personal life is falling apart. Marcy was determined to reclaim full custody of Kevin at any cost.[15] Eric returned home to find Hercules under the Dweller’s control and Susan Austin his assistant about to be drained. The Dweller commands Hercules to defend him and hurls Eric over the balcony.[16] He turned into Thor and helped free his friend. But when they returned to the apartment in was trashed and child services was there. Due to the fight he was not able to pick Kevin up from School co Marcy did and made sure CPS would know about it.[17] He battled the Wrecking Crew with Hercules with hopes of his friend gaining his confidence back.[18]

Stellaris came to Earth looking for after the Replicoid, wanting vengeance against the Celestials.[19] Thor and the Avengers fight her off, but not before she kills the Replicoid. Stellaris then sets out after another, reading of Celestial energy – Hercules. Hercules is alone watching Kevin, while Susan and Sam go to meet with Marcy’s lawyers.[20] Hercules defeated Stellaris, but Eric came to a monumental decision; he will relinquish custody of his son Kevin to Marcy for his own welfare.[21] Thor and Hercules travel to the Black Galaxy to find the High Evolutionary.[22] Thor battles Nobilus, who was set free by Stellaris. During the battle, a massive blast causes Eric to be split from Thor.[23] The galaxy became a Celestial.[24] They returned to Asgard after being warned by Sif. They find Surtur and Ymir locked in combat. To defeat them, Thor must retrieve Twilight from the Sea of Eternal Night.Thor becomes trapped, and Eric makes a fateful sacrifice. He bridges Thor and Mjolnir, and is re-merged with Thor. Thor lights Twilight in the Eternal Flame which causes Odin’s control over Surtur to vanish. Surtur and Ymir fight over Twilight, and while they are distracted, Thor transports them both into the Sea of Eternal Night.[25] Back on Earth; Eric and Jackie Lukus go on a date, making Susan jealous. He then had to face Excalibur, who was tricked into thinking he was Juggernaut.[26] With the real one captured, Eric was confronted by Susan and Jerry, who reveal they know his secret.[27] Jerry and Susan think Eric has a drinking problem. Loki manipulated things to bring Thor, Ghost Rider, and the Wrecking Crew together. Loki wants to reclaim the Asgardian energy from the Wrecking Crew. Leena consoles Susan and tells her how to win Eric. Loki steals the energy from everyone but Wrecker.[28]

New Thor

Eric Masterson (Earth-616) 0013

Eric as Thor

Enchantress kidnapped Kevin and brings him to Loki, and he has finished draining the last of the Asgardian sorcery from the Wrecker. Thor battles his way through Ulik and confronts Loki. Amora decides she wants no further part of Loki’s plan. Loki demands Thor relinquish his hammer or he will kill Kevin.[29] Thor battledLoki for the life of Kevin. Code: Blue managed to get Kevin to safety, and Thor beats Loki. The Enchantress doesn’t want any witnesses, and Susan can identify her. Out of spite, Loki sends a mystic blast towards Marcy and Kevin, but Amora causes Susan to dive in front of it, saving them and sacrificing herself. Thor feels that there is no more choice. He begins the ancient ritual, and using his lifeforce, kills Loki. For breaking Odin’s sacred law, Thor is banished for all eternity. But Thor pleads to not leave Earth defenseless and to spare Eric. So Heimdall causes Eric to become the new Thor. All of Thor's powers, but Eric's mind. [30]Eric as the new "Thor" battled Ulik but was easily beaten. However he returned and fought like himself, instead of trying to fight like the original Thor, and is victorious. Susan still has not woken up and is visited by Eric, and then Leena comes in and whispers to her that she may continue to live as long as she is not a threat. [31] Eric was uneasy in the role, finding it difficult to convince his teammates that he was the same Thor that had accompanied them on previous missions. He eventually admitted the truth.[32]


146513-196573-thunderstrike super


When Thor returned, Odin had the Uru mace Thunderstrike given to Eric. He continued to adventure, calling himself Thunderstrike after the mace he used.[33][34]

Secret Defenders

He and James Rhodes acted as Secret Defenders assisting the Silver Surfer.[35]


Thunderstrike and Bloodaxe

Thunderstrike possessed by the Bloodaxe

Thunderstrike was confronted by a new Bloodaxe, who claimed the wielder was someone close to him. It turned out to be his girlfriend, Jackie Lukus. Eric was able to save her and use both his mace and the Bloodaxe to battle Seth, becoming possessed in the process. He died to purge himself of its corruption and refused a place in Valhalla.[36]

Legion of the Unliving

Thunderstrike was later revived as part of the Grim Reaper; Legion of the Unliving. After overcoming the Grim Reaper's control, he was returned to the spirit world by the Scarlet Witch. It is not made clear if this was Eric that returned, or a magical construct of some sort, although his last words were to Thor in regards to checking on his son Kevin.[37]

Power Grid [38]
Energy Projection
Fighting Skills
* Teleporter


  • Eric proved himself worthy to wield Mjolnir, and was merged with Thor to save his life. When Odin had Eric replace Thor, Masterson had the full strength and weather control powers as Thor. Later, when Eric wielded the enchanted mace known as Thunderstrike, the mace granted him a number of superhuman attributes, many of which are conventional among the Asgardians:
    • Transformation: By tapping the enchanted mace twice, Masterson transformed from his Thunderstrike form to his mortal form, in which his mace transformed into a cane. By tapping the cane twice, Masterson was transformed back into his Thunderstrike form and the cane reverted to the mace.
    • Superhuman Strength: As Thor, Masterson had Class 100 strength. In his Thunderstrike form, Masterson possessed superhuman strength superior to that of the average Asgardian male. At his peak, he could lift about 100 tons. In human form, Eric Masterson had the strength of a normal human who engaged in regular exercise.
    • Superhuman Speed: As Thunderstrike, Masterson was capable of running and moving at speeds greater than even the finest human athlete.
    • Superhuman Stamina: As Thunderstrike, Masterson's musculature produced considerably less fatigue toxins during physical activity than the musculature of a human being. His physical stamina was equal to that of the average Asgardian male and he could exert himself at peak capacity for about 24 hours before fatigue began to impair him.
    • Superhumanly Dense Tissue: As Thunderstrike, Masterson's skin, muscle, and bone tissues had 3 times the density than the same tissue of a human being. This contributed, somewhat, to his superhuman strength and weight.
    • Superhuman Durability: As Thunderstrike, Masterson's body was far more resistant to physical injury than the body of an ordinary human. He was capable of withstanding great impact forces, temperature and pressure extremes, and powerful energy blasts without sustaining injury.
    • Regenerative Healing Factor: As Thunderstrike, like all Asgardians, if injured, Masterson's body could heal itself with superhuman levels of speed and efficiency. However, he would not have been able to regenerate missing limbs or organs without magical assistance.
    • Superhuman Longevity: As Thunderstrike, like all Asgardians, Masterson was highly resistant to the effects of aging resulting in him aging at a rate much slower than a human being, although he was not immortal. However, he was immune to all known Earthly diseases and infections.
    • Allspeak: Thanks to the Allspeak, Asgardians can communicate with and be understood by all races.


Eric learned hand to hand combat from his time with Thor, Hercules, and Captain America (Steve Rogers).


As Thor, Eric wielded Mjolnir. As Thunderstrike, he wielded the mace Thunderstrike.


As Thor or Thunderstrike, Eric could throw the hammer/mace and fly by holding on to the handle.


  • Thunderstrike Mace: named from which he derived his alter ego. Forged out of the mystical metal Uru, enabling it with the chief properties of durability and ability to maintain enchantment. Other than being a nearly indestructible throwing weapon, the mace was augmented by Odin, Lord of Asgard with the following enchantments:
    • The first enchantment was by stamping the mace Thunderstrike would revert to his mortal human form, dressed in whichever clothes he last wore in that form, while the mace transformed into a wooden cane.
    • The second enchantment was by stamping the cane Eric Masterson turned back into his Asgardian form, bearded and garbed in his Thunderstrike costume, while the cane again became the mace.
    • The third enchantment was by throwing the mace and gripping its strap, Thunderstrike could fly at exceptionally high speeds.
    • The fourth enchantment was that he could use the mace to project powerful concussive blasts of mystical energy.
    • The fifth enchantment was the mace magically enabled him to survive the adverse conditions of outer space, including its lack of oxygen.
    • Thunderstrike could also open portals to anywhere in the universe, even other dimensions.
    • The mace presumably had other enchantments as well that Eric had yet to discover at the time of his death.

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