"Superboy's Big Brother!": This story is reprinted from Superboy #89.
Appearing in "Superboy's Big Brother!"
- Cinderella (Mentioned only)
- Daxamites (Mentioned only)
- Ed Locke
- King Mycerinua
- Kryptonians (Dies in flashback)
- Miss Joyce
- Professor Lang (Mentioned only)
- Atlantic Ocean
- Daxam (Mentioned only)
- Egypt (4000 BCE)
- Krypton (Flashback only)
- Kryptonopolis (Flashback only)
- Phantom Zone (Mentioned only)
- United States of America
- Kryptonian Rocket (Flashback only)
Synopsis for "Superboy's Big Brother!"
This story is reprinted from Superboy #89.
While out with Ma and Pa Kent, Clark notices a rocket crashing to Earth. Investigating it as Superboy, the Boy of Steel is shocked to find an occupant inside that has a star chart and a medallion around his neck from Jor-El, his own father, about his apparent son. Believing that this person is a previously unknown and long lost brother, Superboy is disappointed to find that the occupant has amnesia. Taking him in with the Kents, they decide to name him Mon-El, based partially on the day of the week he landed on Earth (Monday) and on Kryptonian names. Pa Kent also sets Mon-El up with a civilian guise of Bob Cobb so that Mon-El can assume a civilian life in Smallville, as a brush salesman.
However, Superboy beings to get suspicious of Mon-El's true nature, and begins to doubt his origins when he realizes the buckle on Mon-El's belt is not made of any Kryptonian metal, and Krypto doesn't recognize Mon-El. As a final test, Superboy tries to expose Mon-El to Kryptonite as the boy sleeps and is shocked that it has no effect.
The next day, after Mon-El tries to show up Clark for Lana Lang's affections, Superboy decides to trick Mon-El into "revealing" himself by orchestrating a Kryptonite meteor hoax while they're playing. To do so, Superboy paints lead meteors to resemble Kryptonite and throws them into space so that they land on Earth at the right time. Superboy is shocked to find that Mon-El is effected by the lead meteors just as Superboy would have been effected by real Kryptonite. This causes Mon-El's memories to return, and he reveals that his real name is Lar Gand, who was from the planet Daxam, and landed on Krypton just before it's destruction and befriended Jor-El before departing the planet, and that the crash really did cause him to have amnesia. As lead being the Daxarian's weakness, Mon-El is about to die, however Superboy comes up with a solution to save Mon-El's life, by sending him to the Phantom Zone until he can find a cure for Mon-El's lead poisoning.
Appearing in "The Kent's Second Super-Son"
Synopsis for "The Kent's Second Super-Son"
This story is reprinted from Adventure Comics #260.
While Superboy is away in space on a mission, the Kents adopt a boy from Smallville Orphanage for a month, who turns out to be a super-powered alien named Vidal who takes Superboy's place in his absence.
Appearing in "The Super-Weakling from Space"
- Ace (Single appearance)
- Dworn (Single appearance)
Synopsis for "The Super-Weakling from Space"
This story is reprinted from Superboy #65.
A young alien named Dworn arrives on Earth and befriends Clark Kent. Clark soon discovers that Dworn has the ability to turn other objects into solid gold. Fearing that unscrupulous men might try to take advantage of the alien's abilities, Clark sets him up with a cover identity – Alan. As Alan, Dworn temporarily moves in with the Kents and meets Lana Lang.
A criminal known as Ace discovers Alan's true identity and has his men apprehend Dworn. They force Dworn to provide them with an unlimited supply of gold. Clark changes into Superboy and attempts to rescue his friend. However, Ace is ready for him and keeps Superboy at bay with a piece of Kryptonite. Surprisingly, the radioactive mineral actually provides Dworn with additional super-powers and he aids Superboy in defeating Ace and his goons.
Dworn says goodbye to Superboy and flies off into outer space taking the dangerous Kryptonite with him.
Appearing in "The Two Boys of Steel"
- Superboy (First appearance as Andy Lang)
- Andy Lang (In a photograph only)
- Children's Aid Society (Mentioned only)
- Ronald Lang (Mentioned only)
- Tom (Single appearance)
- Uncle Frank (Mentioned only)
- Krypton (Mentioned only)
- New York (Mentioned only)
- Kryptonian Rocket (Mentioned only)
Synopsis for "The Two Boys of Steel"
This story is reprinted from Superboy #63.
When Clark Kent is struck by lightning and exposed to Kryptonite at the same instant, he suffers amnesia and loses his glasses. Lana Lang recognizes him as Superboy and helps him concoct a new secret identity as her cousin Andy, until his memory returns.
Appearing in "The Kid from Krypton"
- Krypton Kid (Only appearance; dies)
- Gangsters (Single appearance)
- Jor-El (Dies in flashback)
- Lara (Dies in flashback)
- Zol-Zu (Dies in flashback)
- Jonathan Kent (Flashback and main story)
- Martha Kent (Flashback and main story)
- Lana Lang
- Sound Engineer
- Green Kryptonite
- Lead-Lined Chest
- One Million Decibels
Synopsis for "The Kid from Krypton"
This story is reprinted from Adventure Comics #242.
Zar-Al, a Kryptonian teenager, is sent by his father in a time-ship to Earth in the future, where Jor-El will send Kal-El, in order to find a supply of Zeelium, the only element that can dampen Krypton's uranium core.
On Earth, he arrives in Superboy's time, and becomes known as the Krypton Kid. He becomes a friend to Superboy, but neither of them can discover any Zeelium. To keep Superboy from sacrificing himself by going into the past, Zar-Al creates a decoy Time-Ship and false Krypton, and returns to the real Krypton in the pas, dying alongside of his father.
Appearing in "Supergirl in Smallville"
- Appearances not yet listed
Synopsis for "Supergirl in Smallville"
This story is reprinted from Adventure Comics #278.
- Also featured in this issue of Superboy were:
- "How Mon-El Left the Phantom Zone" (one-page text feature)
- "Superboy's Time Trips" (one-page text feature)
- No trivia.
- Superboy Recommended Reading
- Adventure Comics (Volume 1)
- Superboy (Volume 1)
- Superboy (Volume 2)
- Superboy (Volume 4)
- Superboy (Volume 5)
- Superboy (Volume 6)
- Superboy and the Legion of Super-Heroes (Volume 1)
- Superboy and the Ravers (Volume 1)
- Young Justice (Volume 1)
- Young Justice (Volume 3)
- Teen Titans (Volume 3)
- Teen Titans (Volume 4)
- Supergirl Recommended Reading
- Action Comics (Volume 1)
- Adventure Comics (Volume 1)
- All-Star Comics (Volume 1)
- Supergirl (Volume 1)
- Superman Family (Volume 1)
- Supergirl (Volume 2)
- Infinity Inc. (Volume 1)
- Power Girl (Volume 1)
- Supergirl (Volume 3)
- Supergirl (Volume 4)
- Supergirl (Volume 5)
- Supergirl and the Legion of Super-Heroes (Volume 1)
- Power Girl (Volume 2)
- Supergirl (Volume 6)
- Worlds' Finest (Volume 1)
- Supergirl (Volume 7)