Real Name: Alexander Joseph Luthor
Occupation: Criminal
Marital Status: N/A
Base of Operations: Metropolis
Height: 6ft 2in
Weight: 210 lbs
Eyes: Green
Hair: None
First Appearance: Action Comics #23 (April 1940)
Created By: Jerry Siegel, Joe Shuster

* NOTE: Lex Luthor's history mostly involves Superman, However we're focuasing on his history with Batman & Bruce wayne

Lex Luthor had cultivated a popular image as a great philanthropist. He had been instrumental in reverse-engineering alien technology for use in general consumer goods, upgrading Metropolis into a true "city of tomorrow." Luthor also played an instrumental role in assisting the Justice League in recharging the sun during the Final Night storyline. Later, when Gotham City was destroyed by an earthquake and then abandoned by the American government in the early 2000s, it was LexCorp that took up the massive task of rebuilding the city. Unbeknownst to the populace, Luthor also took the opportunity to destroy property records so he could seize any land he wanted. By gaining a foothold in Gotham, Luthor made an enemy in Bruce Wayne, who publicly denounced him.

Lex became the president of the United States in 2000, winning the election on a platform of promoting technological progress (his first action as president was to take a proposed moratorium on fossil-based fuels to U.S. Congress).

Despite Luthor's more unsavory traits, he was assisted by the extreme unpopularity of the previous administration due to its mishandling of the Gotham City earthquake crisis. Ironically, Batman would ultimately learn that the mishandling of the entire Gotham City rebuilding process was the fault of Luthor alone, resulting with Bruce Wayne severing all military contract ties between the U.S. government and his company Wayne Enterprises in protest of Luthor's election as President. Luthor responded in turn by ordering the murder of Wayne's lover Vesper Fairchild and framing Bruce Wayne for the murder.

In 2004, Luthor once again overplayed his hand, as his success at framing Bruce Wayne for the murder of Vesper Fairchild caused him to get arrogant. In an attempt to blame Superman for a kryptonite meteor approaching the Earth, he instead raised questions about himself as Superman and Batman uncovered a plot of Luthor's to further torment Batman that involved tricking Batman into thinking that the Superman villain Metallo was the man who killed Batman's parents. In desperation, he used a variant combination of the "super-steroid" Venom (a steroid mainly used by Batman villain Bane), liquid synthetic green kryptonite, and an Apokaliptian battlesuit to battle Superman directly. Unfortunately, the madness that is a side effect of Venom took hold, and he revealed his true colors during the battle. Superman and Batman were able to gain evidence by Luthor, via a mad confession during the battle on recorded to video, that Lex had traded arms with Darkseid on Apokolips, giving them the creature Doomsday in return for his aid during the "Our Worlds At War" crisis. The last nail in his coffin was the revelation that Talia Head, the acting CEO of LexCorp, had sold all the company assets to the Wayne Foundation. Luthor has since gone underground, leaving the presidency to his vice president, Pete Ross. Ross later resigned, however, leaving the presidency to a man named Jonathan Horne.