In his earliest appearances, Luthor is shown with a full head of red hair ; despite this, the character later became hairless as the result of an artist's mistake.

Less than a year later, however, an artistic goof resulted in Luthor being depicted as completely bald in a newspaper strip.

In gratitude Superboy builds Luthor a laboratory, where weeks later he manages to create an artificial life-form, which Luthor loved as if his own child.

A concise biography for Luthor, later outlined in Action Comics # 850, first appeared in the 2007 limited series Countdown to Final Crisis.

Libra later figures out Luthor had been the mole in the Society of Super Villains.

Luthor later assists Superman and his remaining allies in constructing the new Miracle Machine to reset the universe and recreate the universe without Darkseid

Luthor later manages to use Brainiac's connection to his ship to kill the soldiers assigned to watch him.

The two are later shown to have entered into an alliance, with Brainiac promising Luthor the Earth when he is done with it.

It is later revealed that Lex Luthor was the secret caller named " Icarus " that was giving secret information on Glen Glenmorgan to Clark Kent.

Lex Luthor himself later marries Ardora of the planet Lexor and, in Action Comics # 544 ( June, 1983 ), first learns of his infant son by Ardora, Lex Luthor, Jr. A short time later, Lexor is destroyed and both Ardora and Lex, Jr. die as a direct result.

The Contessa later escapes to an island mansion, but upon being elected President, Luthor targets her home with a barrage of missiles and destroys it.

Seven years later in a flash-forward sequence, it's revealed that Luthor is the President of the United States and has donned his white suit and black glove.

The widow dies shortly after Superman's return to Earth, and Luthor immediately sets out to avenge himself, first by ransacking the Fortress of Solitude, and later through the abduction of Lois Lane and her son Jason.

Lex Luthor later combines one of the crystals with Kryptonite and shoots it into the ocean, creating what he calls " New Krypton ".

The character is later given the civilized name of ' Clark ' by Lois Lane, and is captured along with his friends, and used for profit by Lex Luthor, who is also eventually slain.

Conner Kent was a clone made by Cadmus in case Superman turned or was ever defeated ; it was later learned that his DNA is half-human ( with Lex Luthor as his human father ).

It is later revealed that Ra's al Ghul and Luthor are plotting together to have the diplomats saved by Mercy Graves from the assassins and have them make a weapons deal with Luther in order to assist the Light ( Project Cadmus ' Board of Directors ).

Superman later destroys the Fortress after it has been breached by Luthor and the Phantom Zone criminals, but then goes back in time, where it remains normal.

Burton's own script included Brainiac's intellect bonding with Lex Luthor, as would later happen in Justice League Unlimited ( and which had previously been seen in the comic book story Superman: Whatever Happened to the Man of Tomorrow?

The long-anticipated wedding was put off to coincide with the characters ' marriage in the comics, which led to many storylines designed to delay and interrupt the wedding on the TV series Another controversy erupted when ABC announced that the wedding would actually take place Valentine's Day weekend, even sending out heart-shaped " wedding invitations " to ABC News staff, only to present viewers with a bogus wedding in which Clark unwittingly married a clone of Lois, developed by a mad scientist whose creations were required to ingest frogs periodically which started a main thrilling climax of a special five-part story with Lois being kidnapped by Lex Luthor who had put the clone in her place and later after a sharp hit on the head had amnesia and needed to regain her memory.

Despite Superman destroying his base, Luthor apparently escapes, with Superman destroying the machine and the scientist who made it committing suicide to prevent its reinvention.

Luthor escapes with Brainiac, leaving Superboy, Lori, and Krypto horrified at his cruelty.

However, Luthor escapes after receiving a power ring fueled by the orange light of avarice and becomes a deputy of the Orange Lanterns.

He then devises a trap for Superman that almost kills him, but Superman narrowly escapes when Luthor leaves him to his fate.

* Century 21: Doomsday Minus 1 — As Knightwing introduces his twin daughters Supergirl Red and Supergirl Blue, the robotic brain of Lex Luthor escapes.

Breach escapes from imprisonment by Alexander Luthor.

One year after Infinite Crisis, with Neron having already escaped, Faust escapes from the Tower of Fate with the help of Black Adam through the aid of a revived Isis, and contacted Red Tornado's soul which was still adrift after fighting Alexander Luthor alongside Donna Troy, the Green Lantern Corps, and their allies.

* In The Batman Adventures ( a comic series based on the animated series ), he escapes Arkham several times and teams up with villains such as Lex Luthor and Ra's al Ghul to destroy Gotham.

In the final season, Clark Kent marries Lois Lane ( a few years after her almost-marriage to his arch-enemy Lex Luthor, whom she refused at the altar ), finding love, happiness, and completeness in this relationship which does not jeopardize his Superman persona.

Clark Kent starts out best friends with Lex Luthor, whom he meets after saving the latter's life.

Metallo was soon kidnapped and his power source forcibly removed by Lex Luthor who, after discovering its debilitating effects on Kryptonians, created a ring with a kryptonite gem to keep Superman at bay.

Although Luthor would not appear until two years after Superman's debut, a central theme to his character — a dichotomy of science versus superpowers — was in place.

Luthor attempts to kill Superman after threatening to kill Lois, but despite being weakened by his destruction ray, Superman is able to destroy it.

Luthor apparently dies here after being attacked by his monsters, after which Superman breaks the city's glass cover, causing the ocean to destroy it.

Luthor does not physically appear in The Man of Steel until the fourth issue, which takes place over a year after Superman's arrival in Metropolis.

Even when Superman was depowered after the Battle of Metropolis and remained out of sight for a year, the only thing Luthor accomplished in that time was the self-sabotaged ' Everyman ' project, where " found a big destructive machine so could break things ", claiming that Superman drove him to it.

This idea was further reinforced when Luthor was briefly merged with a near-omnipotent entity that sought peace after its difficult ' childhood '.

" Although none of his attempts to kill Superman work permanently ( though a classic non-canonical story from 1961 entitled " The Death of Superman " has Luthor finally killing Superman after lulling him by pretending to go straight, although Supergirl then arrests him and he is exiled to the Phantom Zone ), Luthor routinely manages to escape from prison and threaten the world again.

He and Superman had originally gone to the world to have a proper fight as Superman did not want to appear cowardly after Luthor over a radio challenged him to a fight, as this planet had a red sun meaning Superman lost his powers there.

Luthor even attempted to send a team of heroes after them under the leadership of Captain Atom-the team consisting of Major Force, Black Lightning, Power Girl, Starfire, Katana and Green Lantern, but this plan failed when Katana and Power Girl quickly sided with Superman and Batman and Major Force was apparently killed, Power Girl noting that Luthor had assumed in his arrogance that the heroes would obey him simply because he was President.

When the Justice Society's forced attempt to stop them by sending Hawkman and Captain Marvel against them met with failure and resulted in Superman and Batman briefly infiltrating the White House, Luthor, in an enraged and desperate gambit after Superman's rapid defeats of his plans, used a variant combination of the " super-steroid " Venom ( a chemical associated with the Batman villain Bane ), liquid synthetic Kryptonite, and an Apokoliptian battlesuit to fight Superman directly.

Returning to the LexCorp building to regroup after Superman damaged his battlesuit, Luthor finds that the acting CEO, Talia Head, has sold the entire company to the Wayne Foundation, forcing Luthor to escape and go into hiding.

One year after the events of Infinite Crisis, Luthor has been cleared of over 120 criminal counts ranging from malfeasance to first-degree murder relating to the New Year's Eve massacre from 52.

As Lex Luthor attempts to ambush Libra after learning that he is a prophet of Darkseid, Lex Luthor soon ends up surrounded by Justifiers.

Luthor successfully accessed Brainiac ’ s brain and after Metallo and Reactron were taken to Kandor as prisoners of the Kryptonians who had now settled on Earth he used Brainiac to reactivate the Coluan ’ s ship that was also being held in Kandor.

While searching for the energy of the Black Lantern simultaneously dispatching various Doomsday ' clones ' created from the original to distract Earth's heroes by sending them after the other members of the Superman family with the aid of a robotic duplicate of Lois Lane created to give him an honest opinion on his actions, Luthor encountered Brainiac in space while attempting to alter the last of the Black Lantern energy, acting upon an unspoken theory of his.

His eighth marriage to Contessa Erica Alexandra Del Portenza ( aka the " Contessa ") is based on mutual greed ; the Contessa buys controlling interest in LexCorp after Luthor is indicted, compelling him to marry her in order to regain control of his company.