Personal Info:
Real Name: Unknown
Also Known As: No known Alias
Place Of Birth: Krypton, Earth-Three
First Appearance: Justice League of America Vol.1 #29 (1964) Silver Age Villain
Known Associates: Owlman, Super-Woman, Johnny Quick, Power Ring
Group Affiliation: Crime Syndicate of America
Base Of Operations: Eyrie of Evil, Earth-Three
Grudges: Justice League of America and the Justice Society of America
Creators: Gardner Fox and Mike Sekowsky
Kryptonian Physiology: Ultraman's race evolved to the point were they could gain great power from the radiation of their planet. The radioactive remains of Krypton give an even greater power to Ultraman who can absorb and process that radiation inside his own body to gain an immense array of abilities. The more Green Kryptonite he absorbs the longer he can use his abilities.
Kryptonite Radiation Absorption: Ultraman's cellular structure allows him to absorb, store and metabolize Green Kryptonite to fuel all of his abilities. He can do this by either eating it or inhaling it after turning the mineral to dust.
Enhanced Abilities: Ultraman has upper level super human strength, endurance and durability.
Invulnerability: Ultraman's body is extremely impervious to harm, and it is nearly impossible to harm.
Flight: Ultraman can defy gravity and fly at incredible speeds.
Ultraspeed: Ultraman is fast enough to fly from the Earth's surface to the moon's orbit in a matter of seconds.
Ultrabreath: Ultraman's lungs can store and blow air with hurricane forces.
Heat Vision: Ultraman's eyes can emit beams of concentrated heat that are hot enough to vaporize minerals and calcinate human flesh.
Super Vision: Ultraman possesses a superior sensory arrangement of visual capabilities, including: Telescopic Vision, Microscopic Vision, X-Ray Vision and Dimensional Vision.
Superhuman Hearing: Ultraman's has the ability to perceive sounds of varying volume or pitch beyond the scope of normal human capability.
Ultraman originally hailed from Earth-Three, a universe with a partially reversed history in which Europe was discovered by Native Americans, the British Isles broke away from the United States, and President John Wilkes Booth was assassinated by Abraham Lincoln. Born on a Krypton that didn't explode, the infant was rocketed to Earth. When exposed to kryptonite as he grew up, the young Kryptonian was not weakened like Superman, but instead gained a new "ultra-power" each time he was exposed. Adopting the name Ultraman, he decided to use his powers for evil, and set out to conquer his adopted home-planet. It would be during his conquering that he encountered four other super-powered beings who would all loosely gather together in various schemes to dominate their world and become the Crime Syndicate of America.
Ultra Man (Earth-3) at DC Database
Ultra Man (Earth-3) at Comic Vine