NOTE: This article is about the incarnation of Lex Luthor from the Arrowverse. The mainstream version can be found here: Lex Luthor.
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Villain Overview
He is not a man! I was the Man of Tomorrow! Not him! NOT! HIM!
~ Lex angrily expressing his hatred of Superman to his sister Lena prior to his arrest.
Your friends have been lying to you from the start. Your boyfriend, Jimmy. Alex. J'onn. That little alien runt, Brainy. Even your own mother. They mocked you, humiliated you, betrayed you. Every... last... one. Denial's a very powerful thing, isn't it? It's been standing right in front of you all this time and you chose not to see it. Kara Danvers is... Supergirl. I'm about to die, but at least I lived without ever being a fool. You're left with no one and nothing.
~ Lex's last words to Lena before his death just as he reveals Supergirl's identity to her.

Lex Luthor is a supporting antagonist in the CW TV series Supergirl. He is an unseen antagonist in the premiere of Season 2 and the main antagonist of Season 4. He is also set to return in Season 5 in an unknown role.

He is the former CEO of Luthor Corp (later L-Corp) and the archenemy of Superman as well as the half-brother of Lena Luthor and the son of Lillian Luthor.

He is portrayed by Jon Cryer, who is best known for portraying Alan Harper on Two and a Half Men, and also played Lenny Luthor, Lex's nephew in Superman IV: The Quest for Peace and voiced Freakshow in Danny Phantom.



Lex was born to Lionel and Lillian Luthor and hails from one of the most prestigious and wealthiest families in Metropolis. Even at a young age, he showed a high-level intellect which his mother saw him as a genius. When Lex was 7-years-old, his pet dog Ignatius was ill and needed to be put down. Although he wanted to be there, Lillian typically thought he was too sentimental and sent him on one of his father's business trip. Lionel introduced him to a woman, who was one of his affairs. Initially hating her, Lex learned to care for her and on the day Ignatius passed away, she comforted him. Therefore, Lex wished she was his mother instead, therefore possibly straining his relationship with Lillian.

After Lionel sent this woman away due to being pregnant, it is possible that Lex developed a bad relationship with his father due to how much he cared for her. After the unnamed woman's death, her four-year-old daughter Lena was adopted into the family. Remembering her mother's kindness, Lex made her feel welcome when they first met and played chess in which she eventually won. During their childhood, they were very close.

However, as he got older, Lex became more cold, power-hungry and delusional to the point of his relationship with his family becoming estranged. Due to his possible disdain for his parent's morals, Lex began to care little for his family name. When Lionel died, Lex inherited the family company, Luthor Corp. After this, he then hired Mercy Graves and her brother Otis as heads of his security. Lex's relationship with Mercy grew over time and eventually, she became his closest confidant and frequent dinner guest.

At some point during his adulthood, Lex became partners-in-crime with Bruno Mannheim, who then laundered money through Luthor Corp. The center of their scheme was the parking lots, which Bruno purchased through a subsidiary he bought off Lex. However, when Lex came under investigation by the state, Bruno dumped him. According to Lena, Lex's relationship with Bruno was the real reason he went down the wrong path in his life.

Rivalry with Superman

Later on, Lex became best friends with Metropolis's Kryptonian superhero Superman and the two of them agreed to work together and try to prevent any future alien invasion threats. However, despite Superman's protests to the contrary, Lex's methods were far crueler. Eventually, after years of deceiving the Man of Steel about how he can still change his ways, Lex's true nature was revealed to him, which instantly set the two of them at odds with each other. Lex then came to the belief that Superman's presence was the cause of alien terrorism on Earth and thus declared war on the Man of Steel. Lex's obsession with defeating him also soon dissolved his relationship with Mercy.

During his war with Superman, Lena grew concerned for Lex's well-being and tried to help him, but he ignored her and continued committing unspeakable crimes in the city. Amongst the crimes included triggering a fault line in California with an earthquake machine that Superman tended to, and another that involved Lex manufacturing and selling a series of battle armors he called "Lexosuits". He used these to gain the upper-hand on Man of Steel when in battle. Over the years, he built secret storage facilities around the world to house various arsenals of weapons to defeat Superman. Lex also converted his own cloaked mansion's basement into a bunker facility designed to protect him from any threats and only confided in Lena of its location. Lex also at some point injected himself with Kryptonite, hoping that it would keep Superman away from him.

Then, a year before Supergirl's arrival, Lex kidnapped Lena and engulfed Earth's atmosphere under the presence of a Red Sun. While watching news of anarchy and destruction across the world, Lex believed that the world will thank him as he wants to prove that Superman is a false god that can bleed and how humanity was better off without him. He displayed his ego about he was the "man of tomorrow", not Superman. Eventually, the police arrived and arrested Lex. It is presumed that Superman removed the Red Sun and saved all life on Earth.

Lex was finally defeated and his crimes exposed by Superman to the public, which resulted in the former being incarcerated and sentenced to Stryker's Island Penitentiary on 37 consecutive life terms. Mercy was a key witness in Lex's trial and betrayed him as she grew frustrated with his obsession with defeating Superman above anything else.

Post Incarceration

After Lex was sent to prison for his crimes, Lena took over the company and planned to rename it as L-Corp and cut off all ties from his name. Enraged by this, Lex hired the assassin John Corben to kill her. However, this plan was thwarted by Superman and his cousin Supergirl.

Even though he was in prison, Lex continued to operate in secret. He recruited Eve Teschmacher, a sycophant of his, to work for him, and frequently left the prison to train and befriend a doppelgänger of Kara Danvers (aka Supergirl). Lex formulated a plan to have Kaznia attack America, so he could foil the attack and be hailed as a hero. He had Otis recruit an anti-alien activist named Ben Lockwood as a patsy. Lex decided to remain in prison as it was the best alibi for him. He eventually took “Kara” to America to show it to her since she was curious about it and Kara. However, “Kara” showed up at L-Corp where Eve worked, prompting a panicked Eve to phone Lex, so he sent Eve and Otis to Kaznia where he had them kill a young boy named Mikhail that she had befriended. The plan backfired though when she went rogue and attacked a ship, forcing Lex to intervene and resulting in an argument between the two.

Even with Lex still in prison, his crimes forever tainted his family's name as nobody trusted a Luthor again. This is evidenced by his mother losing her medical license without even being granted a hearing, and when Lena was accused of breaking her out of prison, nobody began to trust her instantly due to being her daughter.

Following the defeat of Reign and Selena; Ben (as Agent Liberty) Otis, and Mercy (possibly unaware of her brother’s allegiance to Lex), stepped up and fulfilled Lex’s goal of causing chaos and division in America between humans and aliens. Otis and Mercy were supposedly killed, but Ben continued to work as Lex’s patsy, creating the Children of Liberty that continued even after Ben was defeated and incarcerated.

The red daughter became ill, which angered and worried Lex. He and Eve went to Kaznia where they argued over the lack of results that Eve and Lena had produced with Harun-El, which was black kryptonite and the only thing that could cure her. Eve and Lex realized he would have to work with Lena, but Lex knew Lena would never work with him under normal circumstances, so he gave himself cancer by exposing himself to the Harun-El. He then contacted Lena through a hologram, and explained he was dying, successfully convincing her to work with him to save his life.

Lex secretly started funding Lena's secret project to use the Harun-El to create an experimental drug and fulfilled his word to her that nobody else knows about it. Eventually, thanks to Lena tricking Lillian, Lex's partnership with Bruno and his involvement in the latter's money laundering business was exposed to the public and under investigation.

During his incarceration, Lex deteriorated and was left in a critical state to the point where he couldn't even stand up. Six weeks later, Lex decided to speed up Lena's progress by having a still-alive Otis Graves shoot James Olsen in his office.

Return and Escape

Following this, Lex was secretly furloughed to his cloaked mansion where Lena was waiting for him. Upon arriving, they bickered about his predicament and how he was behind the funding of her project. Eve Teschmacher then arrived and told Lena that Olsen was shot. When she returned, she asks for his expertise on Kryptonite so she can separate the superpower effects from the serum. He mocks her relationship with Olsen and how she never told him about their secret partnership. Nevertheless, he agrees to help her finish the serum to save him as well.

Lex and Lena argued about their past partnerships and how she was driven to impress him. After he continued coughing up blood and assured her that he was never popular in prison, he explains that he was always proud of Lena and her intelligence. After Lena became uncertain of James' fate, Lex told him the story of his dog's passing and how he also met Lena's mother during one of his father's many affairs and that he was aware of Lena's true parentage. Eventually, the serum is complete and Lex tells her to go. Lex then secretly had the hospital's power cut off during Manchester Black's attack on the dam so it would force Lena to save James.

After Olsen was cured, Lena confronted Lex that she figured out he was behind the power cut during his operation to force Lena to test the cure on him. He admitted that he was behind it but he then reveals that he had James shot so he would be placed in that predicament. Enraged, Lena declares that she won't give him the cure and he would die in prison. Lex then quickly reveals that he predicted this and that he already took the cure, revealing Otis was alive and that Eve was working for him the entire time. After having Eve lock up Lena, Lex uses the security measures to kill the authorities and escape in the helicopter with Otis. After Supergirl arrives, Lex was pleased to finally meet her.

Lex jumped out of the helicopter, activated his exo-suit and flew away. Supergirl punched him out of the sky, destroying his armor in the progress. Super then knocked Lex away and went to hit him again, but Lex caught her first since the Harun-El had given him powers. He knocked Supergirl away and dragged the Daily Planet globe where he lifted and set it down on her to get away. He then returned to Kaznia and performed a blood transfusion, transferring the Harun-El serum into Kara’s doppelgänger and saving her life.

Equipment and Abilities

  • Enhanced Physiology: The Harun-El serum he injected himself with has given Lex superhuman strength which is somewhat slightly inferior to the likes of solar-powered Kryptonians. He can physically block Supergirl's punch, lift the entire Daily Planet globe and smash it down on Supergirl. The Harun-El serum he injects himself with has even granted Lex the power to regenerate from his failing health and even cure his self-inflicted cancer.
  • Genius-Level Intelligence: Lex's primary asset is his astounding genius-level intellect, which even amongst the Luthor Family is unrivaled. Lex Luther has passed a genius-level intellect from a young age, making him a child prodigy during his youth.
    • Scientific Mastermind: In addition to his immense science knowledge, Lex is an expert on extraterrestrials, especially Kryptonians. Lex has also shown a mastery of programming and engineering, being able to create advanced devices like his Lexosuit, his wristwatch which has hacking protocols and even a device which somehow turned the Earth's sun red.
    • Strategic Manipulator: Lex was personally trained in playing chess by a chess grandmaster named Anatoly Karpov, showcasing that Lex is a highly charismatic manipulator and strategist. Lex can persuade people, regardless of their awareness of deception. Lex's plans are usually extremely complex and are most of the long term oriented than short term.
    • Mentoring Capabilities: Lex is a capable teacher and has even spent his prison sentence, mentoring prison inmates to pass on some level of intelligence to them, particularly in playing chess. Lex even mentored red Daughter by sending her books and teaching her chess as well as honing her accent to speak English in a more Americanized accent.
    • Miscellaneous Abilities: In addition to his scientific and strategic abilities, Lex also possesses a variety of other skills. Lex speaks a variety of languages, particularly English, Latin, Kaznian, Russian, and Kryptonese. Lex also has artistic skills, which he used during his prison sentence to sculpt images on the walls to pass the time due to boredom.
  • Lexosuit Applications: Lex Luthor has built himself a technologically advanced exoskeleton which he uses during his crusade against Kryptonians and other extraterrestrials. While wearing the lexosuit, Lex displays a strong mastery of its combat functions and weapons usage, when compared to other uses of his lexosuit. The exoskeleton has the power to materialize and de-materialize on him upon his command. The lexosuit greatly enhances his physical strength and resilience to the point where he can go toe-to-toe against solar-powered Kryptonians. The lexosuit even possess onboard technology which projects kryptonite-based energy beams and can manifest energy shields.
  • Immense Resources: Even after his incarceration into a maximum-security prison, Lex has somehow maintained his dense network of commodities, assets, influence, information, and connections throughout the world. He was able to arrange for issuing assassination contracts and even manipulated the government to give his sister a position within the D.E.O.

Killed Victims


  • Unnamed Judge
  • Unnamed Baliff
  • Otis Graves
  • Red Daughter
  • Numerous unnamed Kazian soldiers
  • Numerous unnamed DOC agents
  • Numerous unnamed humans
  • Numerous unnamed aliens



  • Luthor's previous friendship with Superman mirrors the same relationship his counterpart had with him in the Smallville series.
  • Long before he appeared in the series, he was repeatedly referenced and mentioned by many heroes and villains, and he was best remembered for his crimes of terrorism against both human and alien life as well as his rivalry with Superman.
  • Although he only appeared in four episodes, Lex ultimately outranked Ben Lockwood, the Children of Liberty, Red Daughter and President Phil Baker as the main antagonist when it was revealed that they were pawns in his plan the entire season.
    • Lex was also behind the formation of the Children Of Liberty and turning Ben Lockwood into Agent Liberty through Mercy Graves.
  • He also knows Kara Danvers is Supergirl, which he later uses to his advantage. During the season finale, he revealed this information to Lena just before his death, ultimately driving a wedge between the two best friends.


           Arrowverse Villains

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The Flash
Abra Kadabra | Alchemy | A.M.A.Z.O. | Amunet Black | Anthony Bellows | Atom-Smasher | Axel Walker | Black Arrow | Black Bison | Black Siren | Bloodwork | Brie Larvan | Captain Boomerang | Clay Parker | Clifford DeVoe | Clive Yorkin | Clyde Mardon | Crucifer | Danton Black | Dominators | Dr. Light | Eobard Thawne | Everyman | Farooq Gibran | General Wade Eiling | Geomancer | Godspeed | Grace Gibbons | Griffin Grey | Grodd | Henry Hewitt | John Deegan | Kilg%re | Killer Frost | Killer Frost (Earth-2) | King Shark | Kyle Nimbus | Leonard Snart | Lewis Snart | Lucius Coolidge | Magenta | Mar Novu | Mark Mardon | Marlize DeVoe | Matthew Norvock | Mick Rory | Mirror Master | Music Meister | Orlin Dwyer | Overgirl | Pied Piper | Plunder | Prank | Prometheus (Earth-X) | Psycho-Pirate | Quentin Lance (Earth-X) | Rag Doll | Reverb | The Rival | Roy Bivolo | Rupture | Samuroid | Sand Demon | Savitar | Shade | Shawna Baez | Simon Stagg | Siren-X | Solovar | Tar Pit | Time Wraiths | Trickster | Top | Turtle | Tony Woodward | Trajectory | Vincent Santini | Zoom

Legends of Tomorrow
Astra Logue | Benatu Eshu | Black Arrow | Black Flash | Bud Ellison | Cassandra Savage | Colonel | Damien Darhk | Dominators | Eobard Thawne | First of the Fallen | Grant Wilson | Henry Stein | Hawk-Beasts | The Hunters | John Valor | Kuasa | Krieger | Legion of Doom | Leviathan | Malcolm Merlyn | Mallus | Mar Novu | Mick Rory | Mr. Blake | Neron | Nora Darhk | Per Degaton | The Pilgrim | Overgirl | Prometheus (Earth-X) | Quentin Lance (Earth-X) | Quentin Turnbull | Samurai | Leonard Snart | Shogun | Stillwater Gang | Tabitha | Valentina Vostok | Vandal Savage | Zaman Druce

Agent Liberty | A.M.A.Z.O. | Astra | Beth Breen | Bizarro | Black Arrow | Bloodsport | Children of Liberty | Colonel James Harper | Cyborg Superman | Dirk Armstrong | Dominators | Eobard Thawne | Ethan Knox | Eve Teschmacher | Hellgrammite | Indigo | Jemm | John Corben | John Deegan | Livewire | Lex Luthor | Lillian Luthor | Manchester Black | Master Jailer | Mar Novu | Maxima | Maxwell Lord | Mercy Graves | Miranda Crane | Mister Mxyzptlk | Morae | Morgan Edge | Music Meister | Natalie Hawkings | Non | Otis Graves | Overgirl | Pamela Ferrer | Pestilence | Phil Baker | Phillip Karnowsky | Project Cadmus | Prometheus (Earth-X) | Psi | Psycho-Pirate | Purity | Raymond Jensen | Reactron | Red Daughter | Red Tornado | Reign | Rhea | Rick Malverne | Rudy Jones | Scorcher | Silver Banshee | T.O. Morrow | The Hat | Thomas Coville | Toyman | Vartox

Alice | Chuck Dodgson | Wonderland Gang

           Supergirl second logo TV Villains

Season 1
Astra and Non's Army (Non, Astra, Indigo, Vartox, Hellgrammite, & Maxima) | Maxwell Lord | Reactron | Livewire | Ethan Knox | Red Tornado | T.O. Morrow | Jemm | Dirk Armstrong | Bizarro | Toyman | Miranda Crane | Master Jailer | Silver Banshee | Colonel James Harper

Season 2
Rhea | Project Cadmus (Lillian Luthor, Cyborg Superman, & John Corben) | Scorcher | Roulette | Parasite | Dominators | Phillip Karnowsky | Mister Mxyzptlk | Music Meister | Beth Breen | Rick Malverne

Season 3
Worldkillers (Selena, Reign, Purity, Pestilence, & Thomas Coville) | Morgan Edge | Bloodsport | Psi | New Reich (Black Arrow, Overgirl, & Prometheus (Earth-X)) | Eobard Thawne

Season 4
Lex Luthor | Children of Liberty (Agent Liberty, Mercy Graves, Raymond Jensen, & Natalie Hawkings) | Otis Graves | The Elite (Manchester Black, Pamela Ferrer, The Hat, & Morae) | Mar Novu | John Deegan | A.M.A.Z.O. | Psycho-Pirate | Eve Teschmacher | Red Daughter | Phil Baker

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