Lex Luthor

Lex Luthor is a man and the archenemy of Superman

Having ran for president (though he did this just to tick Superman off) and being in charge of various villains leagues, Luthor has defiently been one of DCAU's villains greatest threats alongside the Joker After many attempts at defeating Superman failed, he joined up with Slade but he waited til after Joker left since Luthor CANNOT stand him

Legends of Light and Darkness
Luthor appears to help his master deal with who is threatening him and his league. Lex Luthor meets the Alpha Team and confirms their Malefor cause as he was told by Slade before hand. He works with fellow mad sceintists Mojo, Dr.Doom and Master Albert to try to find what was the thing Alie found when the others were confronted by Saix. When learning of Model W, he works with Mojo and Heloise to find a way to track Model W fragments all over the multiuniverse. Mojo and Lex work on a Model W Tracker and in time for Alie's first mission they make it. Lex is kidnapped by the villains force with Mojo and placed in Interpol. They try to pull a escape. However it's doesn't really work and they get help from a man. He escapes and lets Heloise use his and Doom's lab for her next experiment. Lex works again in the science department with Alie to find out the identify of Model W as it may hint something.

Lex Luthor has a bit of a rivarly with Dr.Doom due to their high intellgence and their many qualfies. Lex also shows annoyance at Doom's arrogance when Doom stated no one was smarter than he was. Despite this he gets along with Insano despite his Joker like qualities. When Alie returns, Lex works with  Insano to figure out the identify of their perpuatir. Megabyte alongisde Lex, Bowser and Hades deducts the locations and tells the heroes. Lex goes after the dogs led by Scamp and saves them from The Joker.