Alexander Joseph "Lex" Luthor is a billionaire industrialist, inventor, and scientist, as well as one of the most intelligent people in the world. He is the best friend-turned-archenemy of Superman, whom he views as an obstacle to his megalomaniacal plans and as a threat to the very existence of humanity. A charismatic and well-known yet controversial public figure, Lex was the CEO of Luthor Corp until he was succeeded by his half-sister Lena following his incarceration of 32 consecutive life sentences at Stryker's Island Penitentiary. He later managed to escape from prison to continue his war against Kryptonians. His plan later falls apart when Kara exposed and defeated him. Lex was later shot and killed by Lena, but not before exposing Supergirl's identity to her.
Current Version:
Lex Luthor
Former Versions:
Lex Luthor (Cancer)
Lex Luthor (Harun-El Enhanced)
