Martian Manhunter is a superhero, and member of the Justice League of America.
In the television show Smallville; Martian Manhunter could be thought as Clark's guardian angel. Martian Manhunter used to work for Jor-El as a bounty hunter and Intergalactic Law Enforcer. Martian Manhunter came from the planet Mars; like Krypton it was destroyed because of famine and war. Martian Manhunter is the last survivor from the planet Mars. Martian Manhunter can never get sick or hungry. He also doesn't need oxygen.
Family - (Unnamed Father and Mother), M'yri'ah and Ma'alefa'ak
Powers and Abilities - All Martian powers
Status - Alive (He just recently regained all of his Martian powers due the actions of Doctor Fate; he sacrificed his life to give John his powers back.
Powers and Abilities
Super strength - At a rest state, the Manhunter can lift at least a 100,000 tons. He can match Superman pound for pound. He is almost as strong as Superman, whilst forcing the polymers into tighter bundles. While the Manhunter's strength is almost on par with Superman, he still lacks the long term endurance and stamina of the Kryptonian.
Super speed - Either through flight or natural movement, the Martian Manhunter can maintain speed and reflexes far in excess to that of a standard Earth human. Like the power of flight, this is accomplished by manipulating the magnetic fields of energy surrounding his body, as well as ambient gravitational particles. Traditionally, J'onn only uses his superhuman speed while flying. His super-speed, while impressive, is not comparable to that of the Flash. But at least enough to move in excess of escape velocity (7 miles a second).
Flight - The Martian Manhunter flies by manipulation of gravitons (a subatomic particle associated with the force of gravity) manipulation of magnetic fields and control of his absolute molecular movement (a telekinetic effect). These combine to give him the ability to fly great distances with little fatigue and at great speed. He has been seen to fly at Mach 10 speeds (7690mph) in the Earth's atmosphere.
Durability - The bio-morphic structure of the Manhunter's body allows him to absorb most kinetic energies such as bullets, shrapnel or flying debris easily. He can harden his bio-polymers by rebinding them and become almost as durable, as Superman. Hazardous environments effect the Manhunter less than normal humans and he seems to recover from them much more quickly. He has proven to be immune to most human diseases.
Telepathy - The Manhunter is considered a Class 3 telepath. He is able to read the mind of any normal human with no difficulties, assuming that human is not insane, of normal willpower and has received no special telepathic block training. Given a few seconds to concentrate, he can even read their subconscious mind as well. Has been seen mind scanning every person on Earth within a matter of minutes. Has been seen scanning the minds of people in countries surrounding him in seconds. He can read a normal mind over distances of even a mile, if he knows where the target is located.
Shape shifting - The most incredible of the powers of the Manhunter is the ability to shape-shift. He is able to literally control the molecular structure of his body's bio-polymer and make it resemble anything he wants. He can form clothing, weapons with nonmoving or nonfunctioning parts.
Healing factor - The Manhunter can heal from any injury as long as he leaves the Earth's atmosphere, other wise it won't work.
Invisibility - The Manhunter can cause the bio-polymers in his body to lose his ability to reflect light, rendering the Manhunter invisible to normal light and human sight. With more increased concentration, he can render himself more invisible along the electromagnetic spectrum, including the infrared and the ultraviolet ranges of the spectrum.
Intangibility - The Manhunter can phase through anything.
Longevity - Martian Manhunter can live for centuries.
Super breath - The Manhunter has the ability to create hurricane force winds by blowing.
Microscopic and telescopic vision
Martian Manhnter does not need food or water to survive. Telekinesis can move matter with mind
As a detective he is skilled in hand to hand combat.
The Martian Manhunter has a psychosomatic fear of fire. It is unknown what the source of this fear is, whether it is a personal fear or a cultural fear, but whichever it is, it is a paralytic fear with the Manhunter. Exposure to fire, causes him to lose his powers, and in the case of extreme fire, to lose his control over his biomorphic form. The Manhunter is more vulnerable in this form and can take damage in this vulnerable state. The sun causes Martians to lose their powers. If they return to the atmosphere that surrounds Mars they regain their powers.