Superboy I
Nick Name

Boy of Steel

Boy of Tomorrow

Last Son of Krypton

Civilian ID


Adopted Name

Clark Joseph Kent




Legal Status
Citizen of the United States with no criminal record.
Nation or Planet of Origin

Kryptonopolis, Krypton

Note: Rocketed to Kansas, United States, Earth-1

Group Affiliation

Legion of Superheroes

Base of Operations

Smallville, Kansas

5' 11"
165 lbs.
Eye Color
Hair Color
Known Powers

Solar enhanced biologically typical Kryptonian possessing superhuman strength, speed, agility, stamina, invulnerability, super-sonic flight, laser vision, x-ray vision, macroscopic and microscopic vision, acute senses, hurricane-force and super-cooled breath, ability to live without nutrition, liquid, air or rest for long periods of time and an extremely long life expectancy.

Invulnerability is derived from a biological aura, which can be extended to other objects and beings within close proximity.

Above average intelligence.

Note: Superboy is unable to see through the element Lead.

Only known weaknesses are to red solar radiation, Kryptonite radiation, Kryptonian viruses and magic.

Kryptonite is a radioactive element native to the extinct planet Krypton, and depending on its color qualities, effects Superboy in different ways. Green Kryptonite is deadly.

Xarxas is a Kryptonian virus which causes havoc with the mental reason and abilities of superhuman Kryptonians eventually resulting in coma and then death.


Eye Glasses: Eyewear used as disguise in secret identity.

Kryptonian Rocketship: Spacecraft built by Jor-El to transport his son Kal-El to the planet Earth.

Phantom Zone Projector: Projection device created with Kryptonian science; capable of opening a dimension known as the Phantom Zone, where living being exist as ghost like entities capable of seeing the material world, but unable to affect it.

Common Enemies


General Zod I

Humpty Dumpty

Kryptonite Kid

Lex Luthor

Time Trapper

Regularly Appearing

Adventure Comics Vol. 1

More Fun Comics Vol. 1

New Adventures of Superboy Vol. 1

Superboy Vol. 1

Superman Vol. 1

First Appearance


Action Comics Vol. 1 #1 (June, 1938)

Superboy I

More Fun Comics Vol. 1 #101 (Jan. - Feb. 1945)



Jerry Siegel & Joe Shuster

Superboy I

Jerry Siegel & Joe Shuster


Before Krypton's destruction Jor-El rocketed his only son Kal-El to a primitive planet called Earth. Kal-El was discovered by a Kansas farm couple, John and Martha Kent, who raised the alien as their son Clark.

Developing superhuman powers when exposed to Earth's yellow sun, young Kent became the hero known as Superboy.

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