Star City: Team Arrow (Oliver Queen / Dinah Laurel Lance) | Team Arrow Family Members | Citizens | Criminal Groups (Malcolm Merlyn / Slade Wilson / Prometheus) | Independent Criminals
Central City: West-Allen Family (Barry Allen) | Team Flash (Caitlin Snow & (Killer) Frost) | Citizens | Criminal Groups (Rogues) | Independent Criminals
National City: Citizens (Kara Zor-El / James Olsen) | Luthor Family & Associates | Criminal Groups & Organizations
Freeland: Pierce Family | Citizens | Criminals
Organizations: US Government & Military (Earth-38 Immigrants / Earth-BL Immigrants) | A.R.G.U.S. | The D.E.O. | Justice Society of America | The League of Assassins | H.I.V.E. | Savage and His Followers | International
Other Locales: Gotham City | Other (Earth-38 Immigrants / Earth-BL Immigrants)
Time Travel: The Legends (Sara Lance / Ray Palmer / Leonard Snart / Mick Rory / John Constantine) | Time Masters & Time Bureau | Legion of Superheroes | Time Criminals (Eobard Thawne / Damien Darhk) | The Past | The Future
Miscellaneous: Metahumans (Firestorm / The Hawks / Grodd) | Aliens | Mystics | Other Entities
The Multiverse: Other Earths (Earth-2 (Hunter Zolomon) / Earth-38 / Earth-90 / Earth-X)
BEWARE OF SPOILERS!
Luthor Family & Associates
A wealthy and very prominent family.
- Alliterative Family: Parents Lionel and Lillian, and children Lex and Lena.
- Badass Normal: The Luthors we've seen are all highly educated, obscenely rich, and ridiculously intelligent humans that can solve problems even Kryptonians and Martians are helpless against.
- Big, Screwed-Up Family: Half of the family are sociopaths (Lillian and Lex), one is an Ambiguously Evil adulterer (Lionel), and the remaining one is a good person but has tons of issues (Lena).
- Black and Gray Morality: Lillian and Lex are proud villains, Lionel was Ambiguously Evil, and Lena is prone to Jumping Off the Slippery Slope.
- Evil, Inc.: Lex's tenure as CEO had him use the company's resources for his Obviously Evil plans. This is the reason why Lena renamed the company.
- Feuding Families: They and the surviving members of the House of El have a very tense relationship.
- Fiction 500: They are filthy rich.
- Gender-Equal Ensemble: Lex and Lionel are male, Lena and Lillian are female.
- Mega-Corp: They own and run LuthorCorp (currently L-Corp), one of the most prominent companies in the world.
- Men Are the Expendable Gender: Lionel is a Posthumous Character while Lex was killed in the Season 4 finale. Lex comes Back from the Dead the following season, though.
- Renamed the Same: In order to start over, Lena renamed LuthorCorp to... L-Corp.
- Screw the Rules, I Have Money!: Lex is the most blatant, being a Corrupt Corporate Executive. Same goes for Lillian. Lena, while having noble intentions, is willing to do illegal experiments to achieve her goals.
- Where Does He Get All Those Wonderful Toys?: They're quite wealthy, so they can afford all those top-of-the-line technology equipment they have.
Lena Kieran Luthor
Portrayed By: Katie McGrath, Camille Marty (child; Season 2), Norah Dobbyn (young; unknown year), Samantha Davis (child; Season 5), Lucy Loken (teen)
Appearances: Supergirl | Invasion!note | Crisis on Infinite Earths
The younger half-sister of Lex Luthor, who is now the head of LuthorCorp/L Corp after his incarceration. She bought CatCo in Season 3.
- see Smallville: LuthorCorp for the Earth-167 character who bears her name and background
- Aborted Arc:
- The season 2 episode Luthors ended with the implication that Lena was not as innocent as she seemed and was playing both Kara and Supergirl. This was never followed up and the rest of season 2 showed Lena as a 100% good person and all the initial "shady" aspects of her character disappeared. They were reintroduced in later seasons.
- Season 4 saw Lena's experiments result in the death of a test subject. This seemed to start a new direction for Lena's character but the plot was never referenced again save for a brief flashback later in the season. Lena also avoided any legal actions over the death.
- Season 3 started to set Lena up in the path to true villainy. When Andrew Kreisberg was fired, all his plots were shelved including those involving lena.
- This led to a partial subversion in Season 3. The plot between Lena and Morgan Edge was supposed to last all season and would be tied into Lena's planned descent into villainy. This was shelved because of the Kreisberg firing and that Edge was a sexual predator would be a case of TooSoon. The show took advantage of Edge's arrest in Both Sides Now to write him out of the series. (The episode ended with him saying he would beat the charge).
- Action Girl: At least, she's not a Neutral Female. She will fight back, even if she's over-matched.
- Adaptation Dye-Job: She's blond or a redhead in the comics, but on the show she has very dark hair.
- Affably Evil: She retains her polite attitude after becoming willing to use the Non Nocere project.
- Alliterative Name: Lena Luthor.
- Aloof Dark-Haired Girl: She gives off this demeanor at first, but it doesn't make her a villain.
- Anti-Villain: Lena becomes this in Season 5 after finding out Kara's secret in the worse possible way. She doesn't consider herself a true villain and admits that she doesn't want to kill Kara, or anyone else for the matter, but her increasingly morally grey actions to get what she wants and her plan to remove people's ability to hurt each other, means she is no longer a 100% good character, either.
- The Atoner: She repeatedly states that one of her goals is to undo some of the damage Lex (and, later, her mother) did to the Luthor name.
- Benevolent Boss:
- Of L Corp. She is very kind to her employees and takes a hands-on approach in ensuring their productivity and morals remain high.
- Also of CatCo after buying it: When Kara repeatedly blows off work to focus on being Supergirl full-time, Lena immediately picks up that something is wrong and tries to get Kara to tell her what's going on. Though she has no issue dialing up the "Boss" part when Kara refuses to talk about it and insists on focusing on work, pointing out that Kara's behavior is unacceptable for an employee.
- Berserk Button: Being disagreed with, criticized, or deceived in any way. She's broken up with James and permanently ended her friendship with Supergirl due to the first two, and given that she sees being lied to as unforgivable, it's a a safe bet that however she plans to punish Kara and company for keeping Kara's Secret Identity as Supergirl from her will be very unpleasant.
- Brainwashing for the Greater Good: After being continuously lied to and manipulated by the people she cares about, this becomes her goal during Season 5 to use various relics and technology to create a signal that can permanently remove the ability for people to hurt one another. So far, she has used it on Eve and Malefic.
- Big-Bad Ensemble: For Supergirl Season 5, together with Leviathan. Leviathan is a Nebulous Evil Organisation, while Lena wants to force peace on the world, becoming increasingly unhinged, even agreeing to work together with her recently revived brother.
- Big Brother Worship: Before Lex went all crazed evil overlord, Lena admits she loved and admired him.
- Black and White Insanity: In Lena's eyes, you are either truly good or irredeemably bad, no middle ground. Even if someone she considers good uses less than squeaky clean methods, she will find the intentions justified. However, if anyone dares to lie to Lena or betray her trust, there will be little-to-no chance of Rebuilt Pedestal for the transgressor in question.
- Brainy Brunette: Raven-haired and the head of LuthorCorp. And, in one episode, she teams up with Winn to save the day.
- Breakout Character: While the character was originally planned as a regular, the show couldn't find a suitable actress. The character was downgraded to a guest role and Katie McGrath was cast for 3 episodes. She was an instant hit and kept getting asked back. She was made a regular and initial plans to have Lena as a season long character were extended. Mc Grath's performance, along with her existing fan base and copious amounts of Les Yay pretty much assured this.
- Broken Pedestal: Lena ends up losing her faith in Supergirl in Season 3 after James reveals to her that she had told him to break into her private vault to see if she had any more Kryptonite. She tells Kara at the end of the episode (who she still doesn't know is Supergirl) that she could never trust the Girl of Steel again. In the following episode, she also makes it clear to Supergirl that she no longer considers the two of them friends. Sadly, the pedestal is completely broken when she finds out from a dying Lex at the end of Season 4 that Kara and Supergirl are one in the same, completely losing faith in her and their friends. She makes it clear in the Season 5 premiere that she can never forgive Kara for what she has done and is only pretending to forgive her to manipulate their former friendship to get what she wants.
- Byronic Hero: Lena is very beautiful, highly intelligent, and easily one of the show's most capable characters. She's also prideful, self-hating, and self-sabotaging, and has bad habits of hypocrisy, going it alone, judging people harshly, and failing to take criticism.
- Can't Take Criticism: If Lena has a fault, it's she doesn't take criticism of her inventions or research well; they have benevolent intentions, but her friends always point out how they can be used negatively (Supergirl doesn't take kindly to Lena creating synthetic Kryptonite or other anti-Kryptonian measures). And her friends don't approve of her idea to give humans powers since there are so many ways it could go wrong. She actually goes so far as to break up with James when he tells that he thinks she shouldn't share her research with the government since using it for military purposes will undoubtedly cause chaos.
- The Chessmaster: She's very intelligent, best shown by her ability to repeatedly manipulate Lillian (herself no slouch in the brains department) to get information or thwart her plans. Highlighted in Season 4 where she first appears playing chess with Lillian in prison.
- Consummate Liar: She is able to completely deceive Supergirl's trust despite it being highlighted that Kara's powers make her a Living Lie Detector.
- Daddy's Girl: According to Lillian, Lena was her father's favorite child.
- Dirty Coward: When Kara and Malefic thwart her plan to brainwash the world, Lena gets Eve/Hope to pretend that she (Lena) was being forced into the act, to avoid arrest by the FBI. This also includes shades of her being The Chessmaster, as she was seemingly prepared for this outcome.
- HeelFace Revolving Door: While a good charecter in seasons 2 to 4, she did some questionable things such as stealing Harun-El, secretly trying to create metahumans, secretly working with Lex and causing the death of a volunteer. She was forgiven by Kara each time. In season 5, the show still is unsure whether she is a villain and has her doing unquestionably evil things like basically killing Eve and trying to brainwash the world, but also going out of her way not to kill Kara and helping evacuate Earth 38 in the Crisis. The 100th episode seems to indicate that the show will soon decide which side of the door Lena will occupy.
- Fake Defector: She pretends to side with Lillian in "Medusa", giving her the rare isotope needed to disperse the titular virus over National City. But it is later revealed that she sabotaged the isotope, making it useless, and calls the police on her mother.
- False Friend: In Season 5 she pretends to be forgiving of Kara just to get revenge at her. She later does the same to Andrea.
- Fatal Flaw:
- Pride. As good-natured as she is, Lena has a bad habit of assuming that she's always right and cannot abide disagreement, leading to the dissolving of her friendship with Supergirl and the end of her relationship with James. She also places her own judgment above anyone else's, lacking trust in those who would otherwise be friends and allies, and placing too much responsibility on herself, causing unnecessary emotional strain.
- Self-loathing. Because of her family and the circumstances of her mother's death, Lena has very low self-esteem, which has been exploited by the likes of Lillian, Rhea, and Lex to manipulate her. It also fuels her personal issues, tendency to act alone, and her difficulty in maintaining friendships and relationships.
- See also: Can't Take Criticism and His Own Worst Enemy.
- Freudian Excuse Is No Excuse: Although Kara acknowledges that she hid her secret identity from Lena and lied about her life, she lets her know at the end of It's a Super Life that she can't keep using that as an excuse for her recent actions. This is reinforced in an alternate timeline shown by Mxy, where Lena became a dictator without a Supergirl to lie to her.
- Friendless Background: Strongly implied to have one due to her family's bad reputation and her comments about always being alone on holidays. Somewhat subverted in later seasons with the introduction of Samantha, Ruby, and her old school friend Andrea Rojas (although they did have a falling-out which led to Lena's massive trust issues), the former two being close enough to Lena for Ruby to consider her an honorary aunt.
- Gadgeteer Genius: Can hot-wire and invent high-tech equipment on the fly at speeds rivaling Winn's.
- Good All Along: Given that her surname is Luthor and her mother is as crazy as her brother, the series spends a lot of the first half of Season 2 teasing that Lena might be a villain, complete with an apparent FaceHeel Turn that ends up being a Batman Gambit on her part. By the second half of Season 2, it's firmly established that she's not only a good guy, but well on the way to becoming Kara's best friend.
- Subverted in Season 5. After killing Lex and learning that Kara and nearly every friend she has lied to her about Kara's Secret Identity, she becomes resentful and bitter. Shelving plans to out Kara to the world, she instead manipulates Kara to help with her plan to brainwash the world and forcibly overwrites Eve's personality with that of Hope to give her human form. Although her plans have been stalled for now, she has allowed Hope to take the fall for her, shows zero remorse for basically killing Eve, and still hates Kara. Ironically, she still views herself as the good guy.
- Good Is Not Soft: She may have initially been on the heroes' side, but even then still doesn't hesitate to gun down the man who tried to kill her, which would have killed him if Cadmus hadn't gotten to him. In Season 3, she engages in a brief debate over gun ownership and states flatly that she has used a gun in self-defense. In a later episode, she doesn't hesitate to help Supergirl by attempting hand-to-hand combat with someone who makes a Badass Boast of being a black belt (and holding her own).
- When confronting Morgan Edge over endangering the lives of children just to frame her and her lead bomb, she holds a gun on him and express her belief that anyone so vile deserves to die.
- Later, when she learns that Edge is going to be murdered by her mother, she later realizes that just because she has the same ability as her brother and mother when it comes to being The Chessmaster doesn't mean she has to do it the same way. So she does arrange to save Edge's life but uses the attempt to get a confession out of him.
- Happily Adopted: Slightly averted. She did love and was loved by Lionel and Lex growing up, but craved approval and affection from Lillian. Plus, she's Lionel's biological daughter from another woman, fully averting the adopted part.
- Heroic Bastard: She is the illegitimate biological daughter of Lionel Luthor and his long-time mistress, while at the same time being the most upright member of the family.
- His Own Worst Enemy: Lena often bemoans her lack of friends due to her familial reputation, but as the series goes on, it's shown that she has a habit of inadvertently driving people who are closest to her away when it comes to disagreements over her work. Her deterioration of her friendship with Supergirl over the issue of her keeping Kryptonite and anti-Kryptonian technology; her very blunt refusal to even try to rebuild her friendship with Supergirl, and her (second) break-up with James for his heinous crime of daring to tell her that he thought sharing her human augmentation research with the government for military use would be a bad idea are primes examples of this. In the latter case, Lena recognizes this.
- Hot Scientist: Along with being exceptionally beautiful, she is a verified tech genius, and once was involved in researching nanotechnology.
- Lena can't abide being lied to, but is prepared to keep secrets and lie to those close to her if she thinks it's necessary. When she is angry about Kara hiding her identity as Supergirl, she is willing to maliciously deceive Kara and Andrea to pretend friendship.
- When setting out on her Harun-El experiments, Lena maintains that she doesn't want power to solely be in the hands of those who thinks it makes them morally superior. She herself, of course, feels fine choosing who should be empowered because she's "a very smart woman".
- I Am Not My Father: If there were any questions about Lena's morals, they were answered when she foiled her mother's plan to kill all aliens with a virus. She has come close to uttering a variant of the trope ("I am not my brother") on many occasions.
- Subverted in season 5, when she says acting like lex in doing villainous acts while genuinely believing that she is the hood guy.
- Iconic Sequel Character: Doesn't appear in the show until its second season (and in the Arrowverse until the fifth year).
- I Lied: After retrieving Malefic, she promises him to help him overcome his mental blocks to kill J'onn in return for his cooperation. Instead, she brainwashes him with his own powers afterwards.
- In the Blood: Initially defied. Despite heavy teasing early on that she would be as evil as her brother, she's been adamantly against Lex's criminal activities from the start and a staunch ally to Supergirl who works hard to redeem the company's good name.
- Sadly, she comes close to this come Season 5, where she's gaining an desire to get revenge on Supergirl for her perceived betrayal, not unlike Lex's own beef with Superman.
- It's All My Fault: After many children of National City begin to show signs similar to lead poisoning, Lena doesn't deny or reflect blame that her lead bomb that was used to repel the Daxamites could be the catalyst. Devastated, she offers a sincere and gripping apology to the public and almost steps down from L Corp and CatCo.
- Jumping Off the Slippery Slope:
- In "Battles Lost and Won", she lies to Supergirl about giving Alura all of the Harun-El. In reality, she secretly kept some of it to experiment on.
- In the Season 4 finale, she point-blank murders Lex to keep the world safe...or, at least, that's how she tries justifying it to Lex. Then Lex turns the tables on her by using his last minutes alive to reveal that Kara is Supergirl and she and the rest of her friends have kept Lena in the dark about it for years.
- Taken to its logical extreme in Season 5. Fed up with being lied to by people closest to her and human cruelty in general, she plans to forcefully brainwash humanity as a whole into a peaceful state, being willing to experiment on a prisoner and even threatening the life of her former best friend's lover to get what she wants!
- Likes Clark Kent,Hates Superman: Subverted in season 2 and the first half of season 3, where Lena becomes Kara's best friend while being both friendly with and admiring Supergirl.
- Morality Pet: For her brother, according to Word of God, something that's also been the case in the comics. It's subverted when he hires an assassin to kill her.
- Moral Myopia: She hates that people lie and keep things from her, regardless of the reason. Never mind she's done the same because she had "good intentions".
- Nice Girl: Lena is friendly, altruistic, and affectionate, especially to people she becomes close to, like Kara and Sam.
- Not So Different: Like Lex, she has a really good knack at developing anti-Kryptonian technology. Although Lena uses said technology to keep Reign at bay, Supergirl is still disturbed by the implications. After Supergirl becomes a Broken Pedestal due to a breach of trust, Lena makes some very Lex-like comments about Supergirl's "superiority" to Kara. When she becomes more immoral, she believes herself to be heroic in a similar way to her brother.
- Non-Idle Rich: Instead of loafing about like a stereotypical heiress, she uses the vast Luthor fortune to fund many charities and philanthropy to make her family a force of good in the world. Even Rhea openly admires her dedication to "the little people."
- Odd Friendship:
- She forms one with both Kara Danvers and Supergirl. She even brings up how people wouldn't believe "a Super and a Luthor working together" in "Crossfire".
- She is also friendly with Winn who, to her, is just a random tech geek, though they are nowhere near as close as she is with Kara, notwithstanding a bit of Ship Tease during one of her first appearances where they join forces to help save the day.
- Only Friend: Increasingly views Kara (not Supergirl) as this. Later begins to see Samantha this way, too.
- Ooh, Me Accent's Slipping: Katie McGrath is a good actress, but an awful Fake American. Possibly justified; we don't know if her biological mother was American, Irish, or a different nationality (Lex mentions Lena's biological mother once sang an Irish song to time when he was upset, but does not confirm that she was Irish).
- Out of Focus: Lena was a major part of the first 5 episodes of season 2. She disappeared from the show save for 3 spaced out episodes before becoming a regular in the 18th episode. (This partially a case of  as Katie Mc Grath was a regular on Frontier at the time and she could only film Supergirl when not filming on Frontier).
- Almost in Season 5. The Kara and Lena story was the main plot of the first half of Season 5 (and Word of God said season 5 would be nearly all about Kara and Lena's relationship). After the reboot following Crisis on Infinite Earths, Kara and Lena have had one scene and Lena has been reduced to spending time in her lab and being Lexs lackey. An interview with Jesse Rath seems to indicate that this will not change for the rest of the season (which is strongly believed to be Lena's last on the show).
- Pair the Spares: Pretty much the only reason Lena and James began a relationship. No onscreen explanation was given for them getting together and very little build up was given.
- Promotion to Opening Titles: Starting in Season 3.
- Raven Hair, Ivory Skin: Lena has very dark hair, which greatly contrasts with her pale skin.
- Redeeming Replacement: She succeeded her notoriously evil brother as head of their family's company.
- Redemption Rejection: Once Kara discovers the truth about Lena she spends most of 5x08 trying to reason with her and bring her back from the darkness, while Alex and the DEO take the pragmatic approach which includes lethal force. Lena rejects all of Kara's genuine attempts at apologising.
- Following the crisis reboot, lena retains her memories and Kara tries to make amends with her again. Lena is implied to consider doing so but Lillian convinces her otherwise and Lena starts work on her brainwashing plan again.
- Redemption Quest: She is working hard to restore her family's reputation and reinvent their corporation after her brother's shenanigans. Her first step is renaming the company "L-Corp."
- The Reveal:
- The Cadmus Lead Scientist is revealed to be her (step)mother.
- She herself is revealed to be an illegitimate child of Lionel, making her a biological Luthor after all.
- The Rich Have White Stuff: Lena's entire office, right down to the knick-knacks barely in shot.
- Sibling Yin-Yang: The evil Lex Luthor's more benevolent sister.
- Sins of Our Fathers: She and her family receive backlash from Lex's actions, including from some of the main characters.
- Smart People Play Chess: Which makes her loyalties really suspect, even though she's definitely not on her stepmother's side.Young Lena: [beating a young Lex] I like this game.
Lillian: You are a Luthor.
- Strong Family Resemblance: Flashbacks to her childhood in "Luthors" show that Lena and Lex looked a lot alike. Lillian admits that Lena also greatly resembles her birth mother (which was one of the major factors for her cold treatment of Lena).
- Season 5 confirms that Lena is the spitting image of her mother (Katie McGrath plays Lena's mother in a VR flashback).
- Suspiciously Similar Substitute:
- Although she is a unique character in her own right, Lena is also in many ways a female version of Maxwell Lord, who disappeared without explanation between the first two seasons.
- Serves as this, and a Foil, to Lucy Lane (who also disappeared post-Season 1). They're both genius-level brunettes who don't suffer fools or criticism gladly, and have a fairly strong, if somewhat strained, working relationship with the DEO; both have parents who see Supergirl as a threat; neither woman is thrilled with being kept in the dark about their allies' secret identities; and they both date James Olsen. However, while Lucy doesn't initially trust Supergirl only to do so later and never fully respects Kara Danvers (due to seeing her as competition for James), Lena becomes fast friends with Supergirl, only to later suffer a falling-out over an issue of trust, and gradually but surely warms up to Kara to the point of seeing Kara as her Only Friend. Furthermore, Lucy's sister loves Superman, while Lena's brother absolutely loathes the Man of Steel. Perhaps most significantly plot-wise, Lucy quickly forgives J'onn and Kara for keeping their alien identities hidden from her, while Lena shows no signs of doing so anytime soon.
- This Is Unforgivable!:
- Lex revealing to her not only that Kara is Supergirl, but that all of her friends, including James, knew it and didn't tell her, shatters her to the core. It remains to be seen what exactly the consequences will be, but going by her crushing a picture with herself, Kara, and Alex on it, it seems to be a safe bet that their friendship is over.
- She is disgusted that Andrea Rojas hid the Acrata medallion from her, even when Andrea reveals that she wanted to save her father and her boyfriend with it.
- Token Good Teammate: To the Luthor family since her half-brother and stepmother are both Card Carrying Villains, while her father was Ambiguously Evil.
- The Unfavorite: Lillian always favored Lex and barely tolerated Lena, a fact that Lena is well-aware of and Lillian openly acknowledges this to be true, though according to Lillian, Lena was Lionel's favorite.
- Thou Shalt Not Kill: Even with her decaying morals in season 5, she doesn't want to kill. She struggled to deactivate the Kryptonite cannons when they were attempting to fire at Supergirl. Subverted in earlier seasons, as she fatally shot Corben to save Alex, point blank murdered Lex and was responsible for the death of a volunteer when her experiments went wrong.
- We Used to Be Friends:
- She no longer considers Supergirl her friend after she asked James to break into her lab to see if she had any more Kryptonite. Supergirl wants to be still friends, but Lena point-blank refuses.
- Lena and Andrea were once very close friends. Once she finds out that Andrea lied to her about the Acrata amulet, she was deeply hurt by this betrayal and ended their friendship.
- After Lex revealed to her Kara's secret identity as Supergirl and that everyone she considered a friend was in on it, she decided that friends weren't worth it and turned on everyone she knew.
- "Well Done, Daughter!" Gal: Lena has tried her whole life to please Lillian, but there are lines she won't cross.
- Well-Intentioned Extremist: In Season 4, Lena starts experimenting with Harun-El in the hopes of enhancing humans to put them on a level playing field with aliens, believing that this will be the solution to the anti-alien bigotry perpetrated by the Children of Liberty. Along the way, she performs human testing, aligns herself with the morally shady Colonel Haley, and even works with her evil half-brother Lex. Through it all, however, Lena tries her best to maintain the highest moral standards possible and her intentions remain noble. She gets more extreme in Season 5; spurred on by what she sees as Kara's betrayal, she hijacks Eve's body to serve as a vessel for her new AI assistant Hope, and begins drawing up plans to mind-control all of humanity to stop violence and bring peace to the world.
- White Sheep: Her half-brother is Lex Luthor. Her mother is the head of Cadmus. (As for Daddy, we don't get to know this version of Lionel.) Morals must not run in the Luthor family. But she is benevolent enough to count Kara as her Only Friend.
- You Are in Command Now: Takes over LuthorCorp after Lex is put in jail, striving to make it a force for good and rebranding it "L Corp" in an attempt to distance it from the stigma surrounding her family's name.
- Younger Than They Look: While she doesn't look old by any means, she doesn't look like she was born in 1992 or 1993 either (as per the second season episode "Luthors"). However, a fifth season episode partially set in 2004 shows Lena being aged between 15 and 17. This would give a birth date of between 1987 and 1989.note
Portrayed By: Brenda Strong
The leader of Cadmus, who largely concerns herself with acquiring new test subjects and technology. Also the mother of Lex and adopted mother of Lena Luthor.
- see Smallville: LuthorCorp for the Earth-167 character who bears her name and background
- 0% Approval Rating: None of her children can stand her. Even Lex, her favorite, resents how she was emotionally abusive towards him by trying to teach him Love Is a Weakness and allowed his private tutors to administer excessive corporal punishment if he slipped during his studies. He goes so far as to rip her eyes out of her portrait in the Luthor Family Mansion.
- Abusive Parents: Even towards her supposed favorite son Lex.
- Adaptational Villainy: In the comics and most media, Lex Luthor's mother is portrayed as the lesser evil of his parents. Here, Lex clearly got his worst traits from her, and it is implied that Lionel was the lesser evil.
- Ain't Too Proud to Beg: She unashamedly begs for Kara's aid in saving Lena from Rhea.
- Alliterative Name: Lillian Luthor.
- Bad Boss: "Volunteers" her assistant to be Metallo II. Said assistant is not pleased.
- Broken Pedestal: After finding out that Lex planned to have her killed, she loses all love for him, and has no problem trying to kill him with poisoned tea in "The Quest for Peace".
- Composite Character: Has the name and basic character of Smallville's Lillian Luthor, but her scientific endeavors and vendetta against Superman are taken from Earth One Lex.
- Didn't Think This Through: She was emotionally abusive to Lex and taught him that Love Is a Weakness. She's completely shattered to find out that Lex doesn't love her at all, but in fact hates her and wants her dead both for Revenge and because she's a loose end.
- Disc-One Final Boss: She serves as the main villain for most of Season 2. However, Queen Rhea ends up supplanting her as the true Big Bad.
- Even Evil Has Loved Ones: Despite her own admitted Parental Favoritism towards Lex, she does admit to loving Lena in her own way, and proves it when she secretly begs Kara for her assistance in rescuing Lena from Rhea before the President carries out her orders.
- Even Evil Has Standards:
- Her Fantastic Racism of aliens makes her the Dominion's enemy, though part of it is that if anyone is going to rule the world, it's going to be a Luthor, not a race of alien conquerors.
- During the Season 4 finale, when Lex has herself and Lena brought to the White House, she attempts to poison him, as his madness has gone too far, even for her taste.
- Evil Matriarch: The mother of Lex and Lena who claims that her actions against aliens are for the sake of her children. The way she talks, it seems as though Lex's own xenophobia is derived from hers.
- Evil Redhead: She's played by Brenda Strong, after all.
- Fake Ultimate Hero: Loves to prop herself up as humanity's ultimate savior from the alien menace just like her momma's boy Lex Luthor. However, the acute Lack of Empathy, coupled with her cruel willingness to endanger thousands, if not millions, of human lives, ultimately defeats this vision she has of herself.
- For Your Own Good: It's implied that she wouldn't mind taking over the world and enslaving the rest of humanity to "protect" it from aliens like Kryptonians and Martians.
- She accuses Superman and Supergirl of "pretending at honor" and believes them to have "the ego of gods". Her own methods are decidedly less than honorable, and she is highly smug herself.
- She accuses aliens like Kryptonians and Martians of wanting to Take Over the World, when it's implied that she herself would be willing to do the exact same thing in the name of "protecting" humanity.
- She claims to care about humanity, but seeing how she endangered many lives with Cadmus' terrorist attacks, those words are nothing short of empty.
- In "Resist", she tells both Supergirl and Lena not to let their pride blind them. This, from the woman who let her pride in her own son blind her to the truth.
- In "All About Eve", she mocks Lena for emotional attachments, and for being sentimental, despite the fact that she holds deep attachment and sentiment to Lex. When she learns that Lex has her lined up for assassination, she is utterly shattered.
- Iconic Sequel Character: Doesn't appear in the show until its second season (and in the Arrowverse until the fifth year).
- Insane Troll Logic: She blames Superman for Lex being a villain out of envy toward the Man of Steel because Mama Didn't Raise No Criminal.
- Knight Templar Parent: Whatever her faults are, she does not screw around when it comes to protecting her daughter. Just ask Morgan Edge.
- Mad Scientist: She altered a virus so that it only targeted non-human life and is evil to the core.
- Mama Bear: Tried to straight-up murder Morgan Edge after he tried to kill Lena one time too many.
- Mythology Gag: The first names of both her and her husband are directly taken from their counterparts on Smallville.
- Never My Fault: Or better said, "Never My Family's Fault." In Lillian's eyes, her beloved genius of a son is the innocent victim of Superman's vanity and need to be viewed as the superior specimen, and her anti-alien crusade, even at its most extreme, is a perfectly justifiable way to defend Earth and humanity. As one of the most iconic flaws of Lex's comic counterpart is a blatant refusal to take responsibility for his actions, Lillian is probably where Lex learned this trait from.
- Nice Job Fixing It, Villain!: The Medusa virus is so easily reverse-engineered that it's not only used as a cure for aliens infected with the disease, but also cures J'onn of his White Martian infection.
- Non-Action Big Bad: She always has someone else do the fighting for her.
- Not So Above It All: When Lena is in legitimate danger after being kidnapped by Rhea, Lillian isn't above begging for Kara and the DEO's aid in rescuing her.
- Out of Focus: Following the failure of Operation Exodus, her whereabouts become unknown (along with the rest of Cadmus), leaving the completely-unrelated villain Queen Rhea to take over as Season 2's Big Bad.
- Parental Favoritism: She makes no secret about the fact that Lex is her favorite child. She says every parent favors one child above the others. She eventually admits that Lena's biological paternity played a role in this. Ironically, Lex hates her just as much as Lena does.
- Powered Armor: She borrows Lex's Lexosuit in "For Good" to try and kill Morgan Edge. It's powerful enough to give Supergirl and Mon-El a really good fight.
- Psychotic Smirk: Almost constantly sports one.
- Smug Snake: Even when threatened, she's unflappable in her confidence.
- Spared by the Adaptation: Depending on the Writer, but she's usually a Posthumous Character in the comics and most adaptations.
- Statuesque Stunner: She looks good and, at 5'11 1/2, she is the tallest woman on both the entire show and franchise.
- Tall, Dark, and Snarky: She's the tallest woman in the entire show (and Arrowverse as a whole) and frequently displays sociopathic behavior.
- The Unfettered: She will take any measures to wipe out aliens on Earth, even deliberately put human lives in danger just to turn public opinion against aliens.
- Ungrateful Bastard: Sees Supergirl help stop the alien invasion in Season 2's finale? Doesn't care, she backstabs her anyway, just because she is an alien.
- Villain Ball:
- She honestly didn't consider that, when faced with enemies powered by a substance that could kill them, Superman and Supergirl would think to bring along some back-up.
- She accepted Lena coming over to her side a little too readily, considering she made no secret of the fact that she considered her The Unfavorite. This is what causes her downfall.
- Villain: Exit, Stage Left: When she realizes Supergirl's not lying about Metallo exploding, she and Cyborg Superman quickly beat feet.
- Villain with Good Publicity: She's hailed as a hero who fought in the Alien Invasion during the Season 2 finale, which is technically true.
- We Can Rule Together: Tries to recruit Alex, playing on her frustration with Supergirl. She later tries to goad her stepdaughter Lena to join her, as well. She was rejected both times.
- We Have Reserves: She basically says this to her assistant before he Got Volunteered to be Metallo II.
- Wicked Stepmother: She makes clear that she hates Lena as she is the product of her husband's infidelity. This included bribing her school boyfriend to dump her, exiling her to boarding school, and leaving her to die with Supergirl when Metallo was about to explode.
- Subverted in later episodes when she teams with Supergirl to save Lena from the Daxamite ship, trying to kill Morgan Edge after he tried to kill Lena, and finally admitting to Lena that she loves her while under the influence of a truth seeker.
- Widow Woman: She and Lena talk about Lionel in past tense.
- Worthy Opponent: After Supergirl defeats Corben and calls Cadmus out, she smiles grimly and pronounces, "Then it begins."
- You Have Failed Me: If you work for her and get caught, she'll see to it you never talk.
Species: Human note
Known Aliases: "Alex", The Paragon of Truth
Portrayed By: Jon Cryer, Aidan Fink (young)
Appearances: Supergirl | Crisis on Infinite Earths
Previous head of LuthorCorp and Superman's renowned Arch-Enemy.
- see Titansverse: Supervillains for info about the Earth-9 character who bears his name and backgroundsee Arrowverse: Other Earths for info about his Earth-75 counterpart.see Superman Film Series for more info about two Earth-96 characters; one who bears his name and background, the other bearing his physical likenesssee Smallville: LuthorCorp for the Earth-167 character who bears his name and backgroundsee Smallville: Earth-2 for an Alternate Universe Earth-167 character who bears his name and backgroundsee DCEU Lex Corp page for the character in an undesignated Earth who bears his name and background
- Adaptation Dye-Job: Lex is usually depicted as a redhead before losing his hair. Here, he is raven-haired.
- Adaptational Badass: Season 4 alone depicts him as one of the most terrifyingly competent depictions of the character yet. Even after being exposed as a villain and imprisoned, he successfully schemes his way out of it all, only being stopped by his (temporary) death.
- Adaptational Wimp: Downplayed. He's not entirely weak physically, able to hold his own in combat, but isn't quite as physically capable or intimidating as other versions of Lex Luthor.
- Alliterative Name: Another contender for being the most prominent person with the L.L. initials in the entire Superman mythos, being the Man of Steel's Arch-Enemy.
- For Superman. Lex's hatred and envy for the Man of Steel drives virtually everything he does. He later seems to transfer part of his hatred to his cousin Kara/Supergirl.
- He's also this to his half-sister Lena, who just so happens to be a friend of Kara/Supergirl. As with Clark/Superman, they initially started out on good terms and still absolutely respect each other's intellect, but now want each other dead due to their polar-opposite moral compasses. Whether they are actually willing to kill each other or demonstrate genuine Even Evil Has Loved Ones seems to constantly vary depending on the situation.
- Back from the Dead: He's killed by Lena in the Season 4 finale, but Mar Novu resurrects him just in time for the following year's Crisis Crossover.
- Badass Beard: Has an impressive beard that distinguishes him from other versions.
- Bald of Evil: While he has a full head of hair in his youth, snide comments from other characters during The Present Day reveal that he no longer has hair by the time he's a renowned criminal. It's confirmed when we meet him in Season 4.
- Big Bad: He's the true villain of Supergirl Season 4, having masterminded everything behind the scenes, including bringing Ben Lockwood into power, as well as manipulating Red Daughter. He even gets appointed the new Director of Alien Affairs for a brief time.
- Big-Bad Ensemble:
- He seems to be part of this in Season 4 after J'onn kills Manchester Black. In truth, he's been the Big Bad all along and Lockwood is just his oblivious pawn.
- After his resurrection in Season 5, he is still obviously up to no good, but he opposes Leviathan.
- Brainy Brunette: He is described as having a brilliant mind by other characters and is a brunette in his youth.
- Breakout Villain: He's resurrected after his demise at the end of Season 4, plays a pivotal role in Crisis on Infinite Earths and returns to Season 5 as the new boss of the DEO.
- Brought Down to Normal: Lena de-powers him shortly before killing him.
- Cain and Abel: He's the Evil Counterpart (the Cain) to his half-sister Lena (the Abel).
- Casting Gag: This isn't the first time Jon Cryer has played a member of the Luthor family. In fact, he specifically said he took this role to atone for Lenny Luthor.
- The Chessmaster: He wouldn't be Lex Luthor if he wasn't this. It's revealed that, despite being in prison for four years, Lex has been slowly biding his time until opportunity knocks so he can get his revenge. When that opportunity comes in the form of Red Daughter, he deliberately sets up patsies in the east and west (Kaznia and Lockwood, respectively), manipulates Red Daughter, and even poisons himself with radiation, all to achieve his goals. Bonus points for the episode where all this is revealed having Lex play multiple chess games at once and checkmating all at the same time.
- Corrupt Corporate Executive: Head of LuthorCorp and uses his company's money to fund his shenanigans, at least until he's imprisoned for life.
- The Corrupter: Under Lex's influence, Eve went from a mere Loony Fan to accessory to treason and murder, while Red Daughter became a living weapon for Kaznia and a pawn for Lex's plots for world domination.
- Crazy-Prepared: He made several bunkers around the world, all of which contain weapons and tools (both man-made and intergalactic) to combat Superman.
- Darker and Edgier: One of the darkest iterations of the character ever seen.
- Dark Lord on Life Support: In Season 4, he is wheelchair-bound, dependent on respiratory equipment, and constantly coughing up blood as a result of his Kryptonite poisoning, which is slowly killing him. He later uses the Harun-El serum to cure himself. Then it turns out it wasn't Kryptonite poisoning; he gave himself cancer by exposing himself to radiation in order to manipulate Lena.
- Deadpan Snarker: He generally has a darkly witty demeanor and often makes droll remarks.
- Defiant to the End:
- Lena mentions that he gave the authorities a hard time arresting him despite being bloodied and beaten.
- This is also how he dies. With his last breath, he gloats that Lena is now exactly like him and also reveals that Kara is Supergirl, meaning that her closest friends have been lying to her all along.
- Deliberate Injury Gambit: The radiation poisoning that Lex is suffering from and is slowly killing him? It's not from overexposure to Kryptonite; Lex poisoned himself with radiation so that he could play on Lena's sympathies and inject himself with the Harun-El in order to heal a dying Red Daughter with his blood.
- Disappeared Dad: His mother and sister talk about Lionel in past tense.
- Empowered Badass Normal: Gains superpowers after the Harun-El injection. He also gives himself superpowers after rewriting the Book of Destiny and naming himself a Paragon.
- Even Evil Has Loved Ones:
- His sister is his Morality Pet, as was the case in the comics. Strangely enough, he later hires the ruthless international assassin John Corben to kill her after she takes over LuthorCorp and tries to reform it, but in Season 4, he seems to be back at genuinely caring for her, despite manipulating her. He also made a deal with the Monitor after his resurrection to allow Lena to retain her Pre-Crisis memories and personality in return for doing what he asked.
- He also speaks fondly of Lena's mother, who was there for him more than his actual mother.
- Lillian, since she's a Mama Bear and Mama Didn't Raise No Criminal. Subverted, as it's revealed that Lex actually despises his mother for her abusive treatment. He's even perfectly willing to kill her just to tie up loose ends. However, in the Season 4 finale, it gets Double Subverted, as he indeed seems to cherish her somewhat, not even being willing to kill her after she tries to poison him.
- Evil Cannot Comprehend Good:
- Sending Red Daughter to learn about America almost backfired on him, as she started to see that the people there weren't as bad as she had been told.
- In "The Quest for Peace", he firmly believes that the truth is meaningless, and that using "spin" to manipulate the people will gain him their everlasting trust.
- In Crisis On Infinite Earths, Lex is utterly dumbfounded to discover Earth-167 Superman gave up his powers to raise his family as a normal man. The idea of giving up all that power to be happy is impossible for Lex to comprehend. He also assumes that only Earth-167 Clark is Superman, refusing to believe it's the same for his Clark Kent.
- Evil Former Friend: It's not specified if he's this for Clark, for his superhero identity, or for both, but it is confirmed through dialogues that they were once the best of friends.
- Evil Is Hammy: He can become rather dramatic when provoked.
- Evil Is Petty: Oooh, boy! "Petty" barely begins to describe Lex Luthor:
- The reason he became a domestic terrorist at all was to kill one man just for being more popular than him.
- In a flashback to his days of supervillain glory, he has police helicopters shot down just because they interrupted his Evil Gloating to Lena. He also poisoned the entire courtroom after his sentence was passed.
- This is taken further in Crisis on Infinite Earths. What does he view as his first priority, knowing that there is a multiversal threat out there, killing billions of people? He steals the Book of Destiny and scours The Multiverse, trying to kill off all possible versions of Superman, just because he can. He then one-ups that by rewriting reality so he becomes the the Paragon of Truth, killing Earth-96 Superman in the process.
- Evil Mentor: To Red Daughter, manipulating her into hating the United States in general and Supergirl in particular and becoming his loyal lackey.
- Evil Plan: Turns out all of his schemes were to abduct aliens to power a Kill Sat to destroy Argo City and kill his Arch-Enemy Superman once and for all.
- False Friend: To Red Daughter; he pretends to be her friend "Alex" and teaches her his own philosophy in order to gain his coveted pet Kryptonian.
- Fantastic Racism: He is infamous for his anti-alien stance, which is most likely the reason for his beef with Superman. He got it from his mother.
- Faux Affably Evil: Most of the time, Lex sounds calm, rational, and even philosophical. Even ignoring his many crimes and Insufferable Genius tendencies, all it takes is someone paying Superman a minor compliment for Lex to go completely berserk.
- Freudian Excuse: Was taught that Love Is a Weakness by his mother from a very young age. As an explicit example, Lex recounts how Lillian forced him to go on a business trip with his father when his beloved pet dog Ignatius had to be put down.
- The Ghost: He doesn't appear in the flesh until Supergirl's fourth season, with him only appearing as a child in a Season 2 flashback.
- Green-Eyed Monster: The reason he hates Superman so much. If Metropolis were a high school, Lex would be the ex-Big Man on Campus dethroned by Superman.
- Hard Light: He has light powers during his stance with the other Paragons, since he rewrote the Book of Destiny to have such powers.
- Hero Killer: In Crisis On Infinite Earths, he steals the Book of Destiny and uses it to travel The Multiverse, killing the Superman on each Earth, until he comes across Earth-167 Superman who had given up his powers.
- Lex talks a big game about how Superman's very existence detracts from humanity, yet by James' testimony, he tried to recruit the Man of Steel as an ally early in their rivalry.
- Lex invalidates his own humanist rhetoric with such speed that it's almost funny; during his trial, after giving a speech about his noble goals in defending humanity from aliens like Superman, he poisons the entire courtroom out of spite over the guilty verdict, showing how little human life really means to him.
- In his childhood diary, Lex derided Lena as "pathetic" for seeking his approval. Yet as an adult, his entire motivation is to be approved as a "hero" by the entie world.
- In "The Quest for Peace", he claims to be hurt that Lena thinks so little of him, despite the fact that he thinks even less of her.
- He uses (what he thinks are) his last words to call Lena a fool for not realizing Kara is Supergirl. When Crisis rolls around, it turns out he has an even worse blindspot when it comes to Clark and Superman: Even after learning they're the same person on Earth-167, he assumes that can't possibly be true where he comes from, or he would have figured it out by now.
- Iconic Sequel Character: Doesn't appear in the show until its fourth season (and in the Arrowverse until the seventh year).
- It's All About Me: As always, nothing means more to Lex Luthor than Lex Luthor. His hatred for Superman is driven by Lex's own feelings of inferiority towards the Man of Steel, and everything he does in "O Brother, Where Art Thou?" is part of an elaborate gambit to cure his cancer. During Crisis on Infinite Earths, he steals the Book of Destiny just to murder alternate versions of Superman, writes himself as the Paragon of Truth in Earth-96 Superman's place and attempts to get all versions of Superman Ret Gone.
- Jerkass: Almost without fail, Lex is an arrogant, self-righteous, insufferable, and condescending prick who can't resist any opportunity to put other people down or praise his own bloated ego.Ryan Choi: "Narcissist", "sociopath", "evil genius"...there are a lot of ways to describe Lex Luthor. But I find "douchebag" to be the most descriptive.
- Lack of Empathy: Human life means nothing at all to Lex; in the space of two episodes and a flashback, he endangers millions of lives just to hurt Superman, kills over a dozen people in person, and has James shot so Lex can callously manipulate his own sister in order to save himself from dying.
- The Man Behind the Man:
- He's the "consult" to Kaznia on how to train and condition Red Daughter. In short, he's the brains of the program and the Defense Minister does everything he recommends.
- To Ben Lockwood and the Children of Liberty. Lex wanted a patsy, specially one who was charismatic and would stir up trouble. Otis showed Lex one of Ben's brochures, then Lex ordered Otis and Mercy to provide Ben with the resources to take the movement off.
- Manipulative Bastard: Quite an impressive one at that; over the course of Season 4, Lex manages to manipulate Lena, the police, Eve, the Kaznian and American governments; Lockwood and the Children of Liberty; and especially Red Daughter, to further his goals.
- Mad Scientist: Brilliant? Yes. Unhinged and driven by his desire to kill Superman? Double yes!
- Moral Myopia: He's convinced that the world will one day thank him for his actions, actions that include mass destruction and the murder of innocents.
- A Nazi by Any Other Name: As if his genocidal plans against aliens weren't enough indication, during the Season 4 finale, he actually quotes Hitler.
- Never My Fault: Just before being sentenced for his crimes, he had the nerve to claim "Superman made me do it".
- Noodle Incident: Currently imprisoned for causing a massive earthquake, as in the first Superman movie. During Episode 15 of Season 4, we get a glimpse of it. He also somehow caused the sun to turn red.
- Not-So-Well-Intentioned Extremist: Lex claims to be a humanist, freeing humanity from the false god that is Superman. It takes all of six words from Lena for Lex to start raving, revealing his true motives to be nothing more than racism, envy, and narcissism.
- Offscreen Villainy: All his asshole credentials are exclusive to his confrontations with Superman, at least until Season 4.
- Powered Armor: He still uses his Lexosuit, even after gaining powers.
- Present Absence:
- Lex doesn't appear in the flesh until Season 4 of Supergirl, but his influence is very evident, particularly where Lena is concerned.
- Despite being the season's Big Bad, Lex only appears directly in two mid-season episodes, then disappears for several subsequent episodes. Despite this, he still manages to dominate the plot as the heroes struggle to decipher and dismantle his plans.
- Raven Hair, Ivory Skin: Flashbacks reveal that, unlike his typically redheaded counterpart in the comics, this version of Lex has very dark brown hair and pale skin, just like his biological half-sister Lena.
- Sanity Slippage: Lena flat-out says that he went insane. Lillian, on the other hand, firmly believes that he's just "the victim of the situation he was in".
- Sibling Yin-Yang: He is positively malevolent; his sister is much more benevolent.
- Super Strength: He's able to catch a punch from Supergirl and pick up the giant Daily Planet statue after injecting himself with the Harun-El.
- Token Evil Teammate: He serves as this for the Crisis team assembled by Mar Novu, and for the Paragons after replacing Superman of Earth-96.
- The Unfettered: After losing his freedom, company, and reputation, Lex only cares about getting revenge on Superman or whatever Kryptotian he can reach and literally nothing else. He even gave himself cancer just to get a working Harun-El serum so he could cure Red Daughter.
- The Unfought: He is already in jail by Season 2. Before that, his fights are mostly with Superman. Averted in Season 4 where he goes toe-to-toe with Supergirl.
- Unseen No More: He and his past crimes are referenced frequently, and some of his weapons (including his Powered Armor) and even one of his security houses are used by his family, but, aside from some childhood flashbacks, he doesn't appear properly until Season 4 as the Big Bad.
- Used to Be a Sweet Kid: In the flashbacks, he seems quite far from the world-renowned criminal he becomes in the modern day. However, even back then, he wasn't quite right in the head as he, according to Lena, would often carefully build an elaborate anthill, lure the ants into it with a false sense of security, and incinerate them on an open flame.
- Villain Has a Point: In "The Quest for Peace". While mocking Red Daughter for naively trusting him, he points out that she could have found out everything about him via a quick search on the Internet, if she had only thought to do so.
- Villain of Another Story: His confrontations are mostly with Superman off-screen, though he did eventually square-off against Kara.
- Villain with Good Publicity: While he was an infamous terrorist Pre-Crisis, the Post-Crisis Earth resets things so that his villainy is in the dark to those not aware of events from the original multiverse.
- Villainous Legacy: Although he's defeated in the Season 4 finale, his actions leave a profound impact on the following season. His Dying Curse to Lena is the reveal that Supergirl and Kara are one and the same and have been playing her this whole time which, combined with the act of her shooting him to begin with, ultimately spurs her path to villainy in Season 5. She also continues to make use of his notes and technology on her villainous path.
- We Used to Be Friends: Both Lillian and James mention that he and Clark/Superman were best friends once, likely a Mythology Gag to Smallville.
- Wicked Cultured: Lex is highly educated, quoting philosophers to illustrate the depths of his loathing for Superman.
- Would Hurt a Child: Ordered Otis to murder Mikhail, a young Kaznian boy with whom Red Daughter is close, in order to fuel her hatred against America.
- You Have Outlived Your Usefulness: He's quick to eliminate those who are no longer necessary to his plans.
- Younger Than They Look: The years have certainly not been kind to him, as he looks far older than a man in his thirties note . This is later actually brought up, as Lillian tells him that cancer aged him prematurely, despite the fact that he already looked that way before the cancer.
Portrayed By: Ian Butcher
- see Titansverse: Supervillains for the Earth-9 character who bears his name and backgroundsee Smallville: LuthorCorp for the Earth-167 character who bears his name and backgroundsee Smallville: Earth-2 for an Alternate Universe Earth-167 character who bears his name and backgroundsee DCEU Lex Corp page for the character in an undesignated Earth who bears his surname and background
- Adaptational Nice Guy: He is usually depicted as an Abusive Parent in the comics and most adaptations. Here, he's Ambiguously Evil, but Lena thinks very highly of him. That said, Lex's comments from "The House Of L" paint him in a darker light (with Lex saying his staying with his family was worse than his leaving) and he apparently was a drunk, so perhaps he wasn't so nice after all.
- The Alcoholic: In "The House of L", Lex mentions that his father was an alcoholic, a claim that Lena doesn't dispute.
- Alliterative Name: Lionel Luthor.
- Ambiguously Evil: While Lena certainly thinks that he's a good man, Lillian disputes it. However, it may well just be bitterness on Lillian's part due to him cheating on her. Lex also doesn't seem to have many fond memories of him, but then again it is Lex, so who knows. Maybe he just liked Lena.
- Black and Gray Morality: He is Ambiguously Evil, but his wife certainly isn't.
- Hereditary Hairstyle: Or lack thereof, as both he and his son are bald.
- Mythology Gag: The first names of both him and his wife are directly taken from their counterparts on Smallville.
- The Patriarch: Of the Luthor family, at least until he died.
- Posthumous Character: Lillian and Lena talk about him in past tense.
- Your Cheating Heart: He had an affair in the past. Lena is actually the product of it.
Portrayed By: Rhona Mitra
Lex and Lillian Luthor's former bodyguard and head of security at LexCorp and Cadmus, respectively. Becomes the right-hand woman to Ben Lockwood/Agent Liberty.
- see Titansverse: Supervillains for infos about the Earth-9 character who bears her name and backgroundsee DCEU Lex Corp page for the character in an undesignated Earth who bears her name and background
- 0% Approval Rating: After Mercy's death, nobody seems particularly sorry to see the end of her; Lockwood is more concerned about losing Mercy's resources than about losing her, Lex didn't bother to resurrect her as a Metallo as he did with Otis, and Otis only mentioned her once since her passing.
- Adaptation Dye-Job: While still an Aloof Dark-Haired Girl, she's normally depicted with jet black hair. This version instead sports dark brown hair.
- Adaptation Species Change: Mercy is an inconsistent case, portrayed as either a Badass Normal human or an Amazon (or, at least, of Amazon ancestry). This version is human.
- Adaptational Personality Change: This version is an Absolute Xenophobe much like Lex, while most others beforehand could care less if her enemy is alien or human.
- Aloof Dark-Haired Girl: She's a brunette and a ruthless criminal.
- Asshole Victim: Her death at the hands of a Hellgrammite was well-deserved.
- Brains and Brawn: The Brains to Otis's Brawn. Mercy outmaneuvered Supergirl twice in her debut episode, the first time by grounding Supergirl with a pair of gravity cuffs and the second time by exploiting Supergirl's Chronic Hero Syndrome to get away cleanly.
- Co-Dragons: Along with her brother Otis, she used to be this to Lex, and later to Agent Liberty.
- The Corrupter: Mercy tries to get Lena on her side by appealing to her sense of being left in Lex's shadow. It doesn't work, although Mercy has more luck with DEO Agent Jensen.
- Dark Action Girl: Able to fight on equal footing with Alex and get away unharmed.
- Dragon-in-Chief: Though Agent Liberty is the public face of the Children of Liberty, Mercy is the one with the resources and has no problem ignoring him if she feels like it. Which makes sense since her entire involvement with Lockwood is because Lex ordered her to get involved.
- Evil Cannot Comprehend Good: Mercy seems genuinely incapable of understanding that not everyone is as xenophobic as she is. She denounces Lena as an "Earth traitor" for refusing to join Mercy's crusade and seems utterly baffled by Alex defending Supergirl.
- Fantastic Racism: Worked for not one, but two anti-alien extremist groups and called Supergirl a filthy roach.
- Fatal Flaw: As Lena says, Mercy emphasizes offensive tactics and neglects her defenses.
- Faux Affably Evil: Mercy's thin attempts at courtesy just make her even more despicable. The only people she actually seems to get along with are other xenophobes like herself.
- Foolish Sibling, Responsible Sibling: The Responsible Sibling to Otis's Foolish Sibling.
- Hate Sink: Mercy is a callous, hypocritical, and self-righteous psychopath out to slaughter aliens out of pure racism. She also tries to corrupt other people to her way of thinking and is baffled that not everyone is as xenophobic as she is. She doesn't even have Agent Liberty's Freudian Excuse or principles to mitigate how awful she is.
- Hypocrite: Despite her pro-human rhetoric, Mercy has no qualms about killing humans even when it's not necessary; she even enjoys it. She doesn't limit herself to "Earth traitors", either; she murders an L-Corp employee to steal his laptop and tries to kill Agent Jensen, who had helped her, for supposedly being a loose end.
- Knight Templar: She'll do whatever it takes to defend her country and humanity from the "alien menace". Even if innocent humans get killed in the crossfire.
- Mook Carryover: In-Universe, she has worked with Lex, then with Lillian at Project CADMUS, then (currently) with Ben Lockwood at the Children of Liberty. Though she was only working for Lockwood on Lex's orders.
- Patriotic Fervor: Her reason for aligning with both Cadmus and the Children of Liberty. Mercy believes she's protecting her country by attacking and exposing President Marsdin as an alien.
- Related in the Adaptation: While Mercy Graves and Otis are both commonly seen as Lex Luthor's lackeys in different continuities, this is the first one in which they appeared together and are directly related (as brother and sister) to boot.
- Siblings in Crime: Works in a coordinated and effortless manner with her brother when they steal an EMP.
- The Sociopath: Despite her claims of patriotism and putting Earth first, Mercy doesn't have a shred of empathy, murders fellow humans with glee, and seems genuinely confused that all humans don't despise "roaches" as much as she does.
- The Stoic: Maintains a calm and indomitable demeanor, even when in the midst of danger.
- We Used to Be Friends: Mercy acted as a surrogate big sister to Lena when she was younger. Suffice to say, by the modern day, they're not quite as close.
Otis Graves / Metallo III
Species: Human (Enhanced via technology)
Portrayed By: Robert Baker
Mercy's brother and a former bodyguard at LexCorp. Also a member of the Children of Liberty.
- see Superman Film Series for more info about an Earth-96 character who bears his name and background
- Adaptation Dye-Job: He has dark brown hair while the original version played by Ned Beatty has salt-and-pepper (brownish gray) hair.
- Adaptational Badass: Unlike his original Fat Comic Relief version, Otis is now a dangerous, competent criminal, although he's still acknowledged as not especially bright.
- Adaptational Curves: He's notably more physically fit compared to the original version played by the pudgy Ned Beatty.
- Ax-Crazy: Claims he's not having (too much) fun cutting off an alien's arm tusks with a laser scalpel, while giggling and unnecessarily cutting off the other one when he only needed the first tusk.
- Came Back Strong: He is resurrected as Metallo III.
- With his sister Mercy, to Agent Liberty. Later with Eve Teschmacher to Lex.
- Dumb Muscle: While he's no slouch in a fight, especially after being rebuilt as Metallo III, Otis is about as sharp as a bag of hammers, although he does have the occasional flash of insight or common sense.
- Even Evil Has Standards: He can't bring himself to kill Mikhail, an innocent boy, for one of Lex's scheme, having "died" himself.
- Evil Is Petty: He stomps on a child's toy with a smile, telling the boy that it's a "metaphor for life".
- Foolish Sibling, Responsible Sibling: The Foolish Sibling to Mercy's Responsible Sibling.
- Jerkass: Mercy at least pretends not to be completely vile sometimes. Otis is a shameless jerk at every available opportunity.
- Hidden Depths: For Dumb Muscle, Otis turns out to have some pretty serious and well thought out criticisms of the press.Otis: I don't trust the press. They always parachute into crises like this without any context for the larger systemic issues at play.
- Killed Off for Real: After at least two resurrections, Lockwood kills him for good after ripping out his Kryptonite heart, after Otis tries to kill him himself.
- Lack of Empathy: Otis shrugs off killing a DEO agent who assisted the Children of Liberty, remarking that he wasn't human, he was "loose ends".
- Named by the Adaptation: He is an Only One Name character in the Richard Donner films, but due to this version being Related in the Adaptation with Mercy Graves, he was given her surname.note
- Psychopathic Manchild: He acts extremely immature, much to the ire of his sister. Doesn't make him any less of a threat.
- Related in the Adaptation: While Otis and Mercy Graves are both commonly seen as Lex Luthor's lackeys in different continuities, this is the first one in which they appeared together and are directly related (as brother and sister) to boot.
- Siblings in Crime: With Mercy.
- Slasher Smile: Otis is a Perpetual Smiler, and his many acts of violence mean that this is a common expression of his.
- The Sociopath: Just like his sister, although Otis is much more low-functioning; he's a sadist with no empathy who carries out acts of petty cruelty with a wide grin. Possibly subverted, as he secretly saved Mikhail from Lex's attempt to murder the boy.
- Took a Level in Badass: Becomes the third version of Metallo after his reanimation and he seems considerably more powerful than his predecessors.
- We Can Rebuild Him: Twice. At first after his death at the hands of the Hellgrammite and later when Lex remotely blows him up.
Portrayed By: Andrea Brooks
Voiced By: Mónica Manjarrez (Latin-American Spanish dub)
Cat's new assistant following Kara's transition into a reporter.
- see Superman Film Series for more info about an Earth-96 character who bears her name and background
- Adaptation Dye-Job: Downplayed. While the character is blonde in her source material, Valerie Perrine's version had dirty blonde hair while Andrea Brooks's is golden blonde.
- Adaptational Badass: In addition of having a genius-level intellect, Eve possesses rather impressive fighting prowess and a Me's a Crowd power, thanks to Lex.
- Adaptational Heroism: She's Lex Luthor's secretary in her source material. Here, she works for Cat Grant briefly, then becomes James Olsen's assistant. It is actually subverted, as we learn in Season 4 that she's been on Lex's payroll the entire time.
- Affably Evil: Although much nastier than she ever pretended to be, Eve's perky exterior is no act; she maintains it even around Lex, and later claims to have been genuinely fond of Lena and Kara.
- Age Lift: Valerie Perrine was in her mid-thirties when she played the role in Richard Donner's first Superman movie, while Andrea Brooks was in her late twenties when she started to play this version of the character. And even if Vague Age is at play, the Earth-96 version is clearly in her late 20s in both cases.
- Almighty Janitor: Studied Nuclear Physics at Yale, yet she seems perfectly content working as a personal assistant at CatCo. She's eventually poached by Lena for work more befitting her education. Considering she's actually working for Lex, this deception was quite intentional.
- Beleaguered Assistant: She didn't quite adjust to Cat. James and Lena are less demanding.
- Bitch in Sheep's Clothing: While she was seemingly nice and easygoing, she's been on Lex's payroll the entire time.
- Brainwashed: In Season 5, Lena has Hope purge all negative emotions from her brain and amplify her loyalty.
- The Cameo: She makes a quite surprising appearance on The Flash when, while working late in James's office one night, she witnesses a battle between two Vibe-powered individuals before both vanish as quickly as they came.Eve: Is it just me or is this city getting weirder?!
- Co-Dragons: With Otis Graves, to Lex.
- The Cutie: Good-looking, adorable, and upbeat. Her attitude doesn't appear part of her act, as she retains a certain perkiness while holding Lena at gunpoint.
- Double Reverse Quadruple Agent: Turns out she wasn't working for Lex the entire time and was working for a secretive organization called Leviathan, who ordered her to be on Lex so he could "move the needle."
- Even Evil Has Loved Ones: She used a sample of Harun-El to cure her cousin's terminal cancer.
- Even Evil Has Standards: Eve is initially unsettled by the violence of Lex's methods, and his plan to give himself cancer leaves her aghast.
- Evil All Along: She's on Lex's payroll and has been the entire show.
- Evil Costume Switch: Eve is usually seen in demure clothes with bright colors. As she's revealed as Lex's henchwoman, she wears a formfitting dark blue dress.
- Hidden Depths: To be inferred, since Cat has an amazing eye for talent. If she didn't, she'd have been fired already. Turns out also that she's a scientist who graduated from Yale.
- Iconic Sequel Character: Doesn't appear in the show until its second season (and in the Arrowverse until the fifth year).
- Ignored Enamored Underling: Eve is madly in love with Lex, who values her well-being about as much as he values pocket lint, although he's happy to let Eve believe otherwise as long as she's useful to him.
- Loony Fan: Subverted. She shows too much devotion to Lex and she even gets compared to a Charles Manson fan by him, but she is just doing so under Leviathan.
- Me's a Crowd: Courtesy of Lex's experiments, Eve gains Kopy's abilities, now being able to duplicate herself, but with the copies becoming progressively less intelligent over time.
- New Meat: She's Kara's replacement intern introduced in Season 2.
- Not What It Looks Like: Eve lamely invokes the trope verbatim when she and "Mike" are caught half-undressed and making out, her legs wrapped around him.Kara: This is the definition of something being what it looks like!
- Phrase Catcher: "MISS TESCHMACHER!!!"
- Promotion to Opening Titles: After being a Recurring Character since Season 2, she's finally added into the opening credits in Season 5.
- Shipper on Deck: After picking up that Mon-El and Kara have feelings for each other, she subtly gives Kara a nudge to act upon them.
- Trapped in Villainy: The Season 4 finale reveals that she actually isn't a Loony Fan of Lex; instead, she was being forced by a mysterious organization named Leviathan, who still has her under their thumb.
Species: Artificial Intelligence
Voiced By: Kari Wahlgren
Portrayed By: Andrea Brooks
An A.I. created by Lena Luthor to help her change the world for the better.
- Adaptational Species Change: She is possibly based on the main DCU character Hope Taya, an Amazon bodyguard for Lex Luthor. This version is an artificial intelligence, and thus not even really human, or an organism at all. At first, anyway.
- Benevolent A.I.: So far, at least. She is explicitly unable to harm any living being, which is why Lena sees her as the perfect template for a better future.
- Number Two: To Lena in Season 5.
- Taking the Heat: Inside Eve, she confesses to be responsible for using Myriad so she gets arrested and Lena, the real culprit, doesn't.
- Wetware Body: After she takes over Eve's body at Lena's command.