These personas have been of various ethnicities, genders, and nationalities, but they have allowed J'onn to amass a vast number of contacts in various fields related to law enforcement and charity work, though most of them have no idea of J'onn's true identity.

An old foe of the Justice Experience, a minor super-team precursor to the Justice League; has cybernetic jaws and an extraordinary intellect and strong mind, greatest desire is to kill J’onn and Agent Chase of the DEO, wiping out all members and relatives of the Justice Experience. His nigh-invulnerable form is easily burned by fire (not mere heat, but actual flame), and his other abilities become extremely hard to use.

Both a philosopher and a guardian, he uses his skills to defend his adopted planet from all threats, equally at home operating in the shadows as the spotlight.
J'onn's powers come from his alien physiology which seems to be composed of a complex molecular chain that resembles polymer bonds but with the ability to be altered at will. His experiments eventually paid-off, though not in the way he intended and his first successful teleportation had randomly locked onto J'onn J'onzz and transported him from Mars to Earth. J'onn is a true international hero, and spends a good portion of his superhero career outside America. J'onn, confused as to what had just occurred, decided to assume the form of the strange alien species native to the planet that he had been transported to. Although J’onn J’onzz suffered great tragedies in his long existence, including the deaths of his wife, their child and almost his entire race, the Martian Manhunter passionately defends Earth, fighting to make sure his adopted home planet never suffers the same fate as his beloved Mars.

Although J’onn J’onzz suffered great tragedies in his long existence, including the deaths of his wife, their child and almost his entire race, the Martian Manhunter passionately defends Earth, fighting to make sure his adopted home planet never suffers the same fate as his beloved Mars.

On Earth, J'onn is an eternal outsider, and can be strangely objective in even the most unusual or emotional situations.


In extreme cases, such as being bathed in continuous, high-intensity blaze, the Martian Manhunter has been known to lose cohesion over his form entirely and melt in a sentient, terrified puddle.

He currently works in Metropolis as a Lieutenant Homicide Detective for the Metropolis Police Department, and is a member of the Justice League. J’onn has been known, on occasion, to shut down his own telepathic abilities to lessen his vulnerability to fire, and he has been on Earth long enough to attain enough control that he can handle the presence of small, controlled fires with little issue. The Martian Manhunter (real name: J'onn J'onzz) is a superhero from DC Comics and a regular member of the Justice League - he is one of the last surviving Martians and has taken on the role as a hero on Earth due to his affinity for the planet, disguising himself as a human due to knowing that humans will fear his alien appearance. It wasn't until an Earth scientist named Erdel made a spectacular breathrough that J'onn was able to move past his grief. Fictional character biography. The Martian Manhunter possess a wide array of varied superhuman powers, which stem from his alien physiology. He is helped in this by his natural telepathic powers and attunement to emotions, granting him exceptional empathic abilities.Due to J'onn's telepathic abilities, he is multi-lingual and fluent in virtually every Earth language.

Martian Physiology: Martian Manhunter has been described as "a living Swiss Army knife" as he possesses more abilities than Superman.

He is extremely intelligent, with advanced reasoning and logic capabilities that he can apply to the situation. In addition, his inhuman form (itself a compromise between a human shape and his more inhuman native form) can sometimes instill fear in people despite his attempts to remain comforting.As a Green Martian, J'onn suffers from an intense pyrophobia. He is also able to utilize his various superpowers in the course of detective work, giving him much greater resources than any human detective.Despite J'onn's eternal 'outsider' status, he has worked hard to overcome the natural emotional gulf between him and humanity at large.

Using telepathy, a Martian can use the pendant to access the store of knowledge.

J'onn is in possession of a Kuru pendant, which acts as a repository of all Martian culture and lore.

J'onn has many contacts and unwitting allies throughout the world.