|Alexander Joseph "Lex" Luthor|
|Name||Alexander Joseph "Lex" Luthor|
|Weapons/Accessories||Kryptonite Laser Gun|
|Vehicles and/or Gadgets||Robot Mech|
|Occupation||CEO of LexCorp|
When Lex Luthor was a child, he lived in a run down area of metropolis known as the suicide slum with his abusive parents. However, he murdered his parents by cutting the brakes to there car he then collected the life insurance money then he founded LexCorp Industries, becoming a billionaire. However, after the rise of Superman, Lex Luthor became an enemy of the Man of Steel. Lex used his wealth to take control of every media outlet in Metropolis using it to give himself a positive public image eventually he came to run the city itself. But that all changed when Superman arrived and Lex viewed him as a serious problem for humanity as he believed if humans had to rely on an other worldly saviour instead of solving problems themselves they would become a weaker species. Lex is cunning and has superhuman intelligence, which he uses in his struggle against Superman. Like Batman, he uses his company and his wealth to produce the equipment he needs. He also often uses Kryptonite weapons, as he is obsessed with killing Superman, and make himself ruler of humanity.
Lex Luthor is one of the many villains who teams up with Lord Vortech and is sent to the Ninjago world to recover the Staff of Elements. He appears on the middle of the tournament and orders Chen to hand over his Staff, however he refuses to do so and, uses the staff to shoot fire at the mech as he escapes. Lex pursue him and end up in the maze of the Underground Caverns alongside Batman, Wyldstyle and Gandalf. He later cornered Chen in the Anacondrai Temple but is defeated by the trio and is sucked by Vortech back to Foundation Prime where he tells him that he was defeated by the heroes.
- The Mech he is using in-game is based on the LEGO Super Heroes set: 6862 Superman Vs Power Armor Lex, which was released in 2012.
- Clancy Brown, who voiced him in LEGO Batman 2 and LEGO Batman 3, as well as almost all of Luthor's appearances in the DC Animated Universe (DCAU), will not reprise the role. Instead, Travis Willingham, who voices Superman in the game, is voicing Lex for this game.
- During Element of Surprise, in the maze section, you can hear Lex repeatedly ranting throughout the maze. This is ironic, as he put Superman in an identical situation in Superman 64.