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CJ 09 September Tessa
“It felt so real, so utterly real—”

This article depicts a subject within the Shadowhunters television series, and as such, it either does not play a role within or differs largely from the established continuity and canon of the books of The Shadowhunter Chronicles.

Alec Lightwood
Portrayed by Matthew Daddario
TMI101 Alec01
Biographical Information
Full name:

Alexander Lightwood

Age: Around 20[1]
Status: Alive
  • Big Bro/Brother (by Isabelle)
  • Pretty Boy (by Magnus)
  • Alexander (by Magnus)



Head of the New York Institute


New York Institute

Known relatives:
Parabatai: Jace Herondale
Significant other(s):
Physical Description
Gender: Male
Hair color: Brown
Eye color:


You know, it's like, you have this plan for your life, and you know what you need to do and what your responsibilities are. And you think, you know, if you follow the rules, everything's gonna be fine. Then somebody comes along and... pushes you off that path.

–Alec relating his own situation to Jace's, Malec

Alec Lightwood is the brother of Isabelle and Max Lightwood and the parabatai of Jace Wayland. Alec is responsible and a leader who cares for the well being of his people. He has had aspirations to be the head of the New York Institute since childhood.


Early life

Alec is the eldest child of Maryse and Robert Lightwood. He is the older brother of Isabelle and Max, and is the parabatai of Jace, whom his family took in when they were young.

Raised by a distant mother who placed a lot of expectations on her children, Alec grew up with a strong desire to prove himself worthy, to make his parents proud and bring honor to his family, and to follow rules and orders to the letter.

An experience from when he was ten years old stuck with him through adulthood. He trained with another Shadowhunter, Preston, but kept losing at kendo training despite his perfect form. Maryse pointed out that in his attempts to perfect his techniques, he became predictable, and thus needed to step outside of the rules and break form to surprise his opponent. Alec listened and broke the other child's nose. When chided by the boy's mother, he simply took it, knowing it would make his mother proud to see him accept consequences for his actions.[2]

Helping Clary

During a routine demon-hunting mission—one not sanctioned by the Clave, much to Alec's disapproval—the group encountered a girl at the Pandemonium Club. The girl was later revealed to be a Shadowhunter unaware of the Shadow World. After the girl's mother was kidnapped, Jace rescued her and took her back to the Institute—another decision Alec highly disapproved of. He saw her as a threat and a potential danger, and he thought of her as a bad distraction for Jace.[3] He became even more livid when Clary insisted on taking her mundane best friend with them.

In order to help Clary, they had to help her regain her memory. Their first attempt was by taking her to the Silent Brothers at the City of Bones. Alec grew more impatient with the number of unsanctioned outings and contact with Downworlders they were having. While exiting the City of Bones, Clary's mundane friend was kidnapped by vampires, further frustrating Alec with the situation.[4]

Alec continued to call out Jace for his recent impulsive decisions regarding Clary. He demanded that they contact the Clave for help in rescuing the kidnapped Simon, but was easily swayed when Jace insisted that they could take care of it on their own, though Alec was still skeptical. They ended up having to sneak out of the Institute without weapons and instead gathered them from a cache in a cemetery. When they found that the cache had no bow and arrows, Alec returned to the Institute to get his and was contacted by Izzy, who sent him the location of the entrance into the hotel. Together, they killed some of Camille Belcourt's vampires before regrouping with Jace and Clary and, finally, saving Simon.[5]

TMI104 Summoning02

The group summoning Valak, moments before Alec broke the bond.

Their next attempt to help Clary regain her memory involved reaching out to the High Warlock of Brooklyn, Magnus Bane. The connection between the pair since their first meeting was undeniable, and Alec was both pleased and baffled by the flirtatious comments Magnus kept sending in his direction. Alec pointedly did not respond to any of them, as not only was he still conflicted over his own feelings, particularly over Jace, but he was also not used to the attention and was still convinced that he should remain in the closet. When they summoned the demon Valak and were forced to relinquish a memory of the one they loved most, the memory that was ripped from him was one of Jace. Alec claimed he had been tricked, struggling at the thought of having been outed, and, in a panic, broke from the summoning circle, inadvertently releasing the demon.[6]


After his mother returned from Idris to tell Isabelle and Alec that the unsanctioned missions at the Institute had shamed the Lightwood name, Alec knew that it was partly his fault for allowing Jace to pursue Clary, knowing it would break his mother's rules. Maryse wanted to arrange a wedding with a strong Shadowhunter family to help restore their name, and thought Alec would adapt and do as he was asked. Isabelle was against the idea, and insisted Alec tell their parents he would refuse.[2]

Later, Lydia Branwell arrived at the Institute as the Clave's envoy. Although Alec did not trust her at first he began to understand her better after learning about the circumstances surrounding her late fiancé. Torn between duty to his family and his own budding feelings for Magnus, he told the warlock about his parents' decision to marry him off. Magnus encouraged Alec to do what was in his heart and to be himself. Alec, after running the Institute with Lydia, knew that a marriage between the Lightwood and Branwell names would not only restore faith in his family in the eyes of the Clave—and therefore provide Isabelle and Max a safer future—but it would also allow them both to run the Institute together.

At the same time, Alec discovered that his parents were members of the Circle years before and had kept that information from them. Angry at being lied to and realizing that his family's honor had in fact been threatened by his parents, he took matters into his own hands and set off to fix what his parents had broken himself. Alec therefore proposed to Lydia, and she accepted.[7]

TMI112 Kiss01

On the day of his wedding, Alec, despite knowing he had feelings for Magnus, continued with the ceremony, thinking it was the right thing even after a last-minute confrontation between him and Magnus. However, Alec finally acknowledged that marrying Lydia when he would never love her was not the right thing for either of them, and faced his feelings for Magnus by kissing Magnus in front of his family, friends and envoys from the Clave, effectively calling off the wedding.[8]

The content collapsed here needs to be edited to conform to wiki standards and show continuity with the rest of this article.
CJ Jem 06
“I cannot be sure, though I think it has something to do with
the clarity of them.”

This article contains content that was recently expanded and has not yet been reviewed by site staff. It may contain some errors and may not yet conform with the wiki's quality standards.

When the Mortal Cup was stolen by Hodge, Alec and Jace teamed up to find him. When they found him, Alec stopped stops Jace from killing him. While expressing his concern about Jace to Luke, Jace escaped with Hodge. Meanwhile, Isabelle and the others have made an arrangement with Camille to get the Book of the White. He and Isabelle went to Magnus's loft and walked in just as Camille kissed Magnus. Camille teased them about Alec's mortality in an evident attempt to drive a wedge between them. After getting the draft of the Writ of Transmutation, Camille led the group to her apartment for the book.

Just as the group finds the book, Valentine appears with some followers, who quickly have them surrounded and disarmed. After facing an ultimatum from Valentine--fight and watch his friends die, or go with him and his friends live--Jace leaves with Valentine through a portal. Unable to get to him, the group goes back to the Institute where they awake Clary's mother.[9]

Finding Jace

Hours after Jace has left with Valentine, Alec back at the Institute working with Magnus, Isabelle, and Lydia to find him. Not being able to feel him through their parabatai bond, Alec grows increasingly frustrated and angry, and lashes out at everyone around him. When Magnus later reaches out to Alec, Alec suggests using his parabatai rune to track Jace, but Magnus refuses, reminding Alec that it almost killed him the last time he did so. Alec storms off once again.

The next day, Alec is leaving the Institute for Magnus', wanting to do something to find Jace, when he is confronted by his mother. Maryse insists Alec forget about Jace, as the new Head of the Institute, Victor Aldertree, has deemed him a traitor to the Clave. Alec persists and leaves. Once at Magnus' loft, he apologizes for how he acted towards him before, and the two prepare to locate Jace together. Right before they begin, Alec feels Jace once again now that he is on land, and goes back to the Institute. He and Isabelle insist on going out to find him, however Aldertree has guards keep them from leaving. Jace escapes with Valentine once again before the Clave can find them.[10]

Clary approaches Alec about her mother almost killing Jace, but he just pushes her away because he believes everything that has happened recently is her fault. He later refuses to have her go on a mission with him and Isabelle to locate different fight clubs Valentine has been targeting. When they fail to capture a Circle member, Alec continues to grow relentless that they cannot find Jace.

TMI202promo Alec01

When Jocelyn approaches the Lightwood siblings with a way of tracking Jace by using Adamas. Alec initially refuses, believing Jocelyn only wants to help them find Jace so that she can attempt to kill him again. However, he eventually agrees and uses the heavenly metal. When they begin the process, Alec seizes, and falls into a comatose state.[11] Despite performing magic on him, Magnus is unable to wake him, only keep him stable, although he slowly begins to slip away. Believing Jace could cure Alec, Isabelle goes out to find him, although he contacts them first. After narrowly escaping the some wolves from the New York werewolf pack with Isabelle's help, Jace is taken to Magnus' loft and is able to wake Alec.[12]

Demon attack

Alec, Isabelle, and Clary are working on locating a demon that possesses mundanes, targets negative brain activity, and uses it to make the mundanes attack others and punch right through victims' hearts. It is later discovered that the demon is in the Institute, having hidden inside the body of a dead victim that Isabelle brought back to study. They learn that the demon had enhanced cloaking ability, which they assume is due to Valentine's experiments. The group splits up to search the Institute for the demon.

Later, Alec is found by Clary, noticing his hands were covered in blood and he has no recollection of what happened. Following bloody footsteps into a room, Clary finds her mother, now dead. Surveillance footage shows Alec was possessed by the demon, who then had him attack and kill Jocelyn.[13]

Days after, Alec is still ridden with guilt over what happened, knowing that Jocelyn was also Jace's mother. After going to Magnus to get away from the Institute for a while, he approaches Clary and is determined to make it up to her. Having visited the warlock Iris Rouse earlier, Clary believes she can bring her mother back from the dead and Alec goes with her, though they are later separated by Iris, who claimed she could not work around his negative energy.

While waiting for Clary downstairs, he encounters Madzie. When a newborn baby begins crying upstairs, Madzie leaves and Alec shortly follows her. He finds Leigh, the woman who answered the door for he and Clary, and asks where she is. The woman shows no signs of knowing who Clary is, although Alec insists to her that she met her earlier. Leigh reveals to Alec that sometimes she loses fragments of her memory, and leads him to Iris' work room, where Clary and Iris are nowhere to be found. Sensing that something is wrong, he goes in search of her and encounters Iris, who uses her magic to attack him. She is promptly stopped by Madzie. The two escape through a portal just as Isabelle arrives to help. The two then regroup with Jace and Clary, and later attend the Rite of Mourning for the fallen Shadowhunters and Silent Brothers.[14]

Budding relationship

After Alec's non-wedding and before the demon attack on the Institute, Magnus and Alec had spoken about going on their first date. Magnus sends Alec a fire message about an emergency, although reveals to Alec that there was no real emergency. He tries to convince Alec that they should go on their first date, insisting that making time for things he cares about will remind him of what he's fighting for in the end in times of war and conflict. Alec agrees and the two go to the Hunter's Moon.

TMI206promo Malec04

Their night begins smoothly, with Magnus ordering them drinks and playing pool. However, things soon take a turn when the subject of exes comes up. Magnus discovers that Alec has never been in a relationship before, and he reluctantly informs Alec of how many lovers he's had in the past; 17,000. Alec's reason for never being in a relationship before had to do with growing up as a closeted Shadowhunter not knowing of any other gay Shadowhunters, which convinced him that he could never have what he truly wanted. When they go back to Magnus' loft at the end of the night, it seems that Alec has lost hope in building a relationship with Magnus, stating that they are both so different from each other. Just as Alec is beginning to leave, he stops and reconsiders, deciding that he didn't care about their differences. He kisses Magnus and the two decide to put effort into a real relationship.[15]

While on a date in Japan and Prague, Alec bought Magnus an omamori, a Japanese amulet said give luck and protection to the wearer, and gave it to him when they were back in his apartment. As they are about to kiss, the moment is ruined when they hear Jace, who recently moved in with Magnus, upstairs with a seelie named Kaelie. They are later interrupted again when Alec is called back to the Institute. When he finds Isabelle, Alec asks for advice on how to know when the right time is, referring to having sex with Magnus. Her advice is that if it feels right, he should go for it. When he is back with Magnus, he brings up sex. Magnus reveals that he fears losing Alec if they rush into this, but Alec reassures Magnus that he won't lose him, and leads him into the bedroom.[16]

Maryse and Max soon return to the Institute to plan Max's rune ceremony since he's finished his last trial. Robert is unable to attend, which means that as the oldest male in the family, Alec must plan the ceremonial party. Alec approaches Magnus about the party, thinking that if they host the party together, it would show his mother that their relationship was not going to go away. During the party, a spell is cast among Alec, Clary, and Jace that played with their fears and insecurities. Alec's guilt over Jocelyn's death still weighed down on him, and the spell made him hear Clary blaming him for it, which she hadn't done before. It drives him to let himself fall from the roof of Magnus' apartment, however Magnus quickly arrives to save him and undo the spell.[17]

The Soul-Sword

After Magnus has sent Iris to the Clave, and Jace and Clary reveal what Valentine's plan with the Soul-Sword is, Alec shows signs of worrying for Magnus and the other Downworlders that live in New York. He is also worrying about Isabelle, and goes to Aldertree, confronting him about how she hasn't been acting the same since the mission to the Iron Sisters. Through Magnus, he learns that Isabelle has been seeing Raphael for vampire venom, and gets angry at him for not letting him know about the yin fen, although Magnus himself had let himself trust Isabelle that she was not partaking in it. He tries to get Isabelle to leave with him, however she refuses.[18]

TMI209promo Alec & Isabelle 02

When he is back at the Institute, the wards have been breached. Alec is one of the two dozen Shadowhunters still in the Institute, the others being on missions to contain rogue Downworlders throughout New York, which were released by Valentine. As Alec and his team approach the entrance to the Institute, he finds Madzie, who was taken by Valentine and controlling her, surrounded by dead Shadowhunters. Before using her gills, her warlock mark, to suck the oxygen out of the air and killing the Shadowhunters, she knocks Alec into a nearby elevator and closes the door.

Alec and Aldertree work together to get to the Institute's roof, where they would be able to manually shut off the Institute's lightning power core. Alec accuses Aldertree of not caring if the Downworlders were destroyed. Aldertree tells Alec about a werewolf he was in love with when he was back in Idris and how she attacked him out of grief after a demon attack. He was forced to kill her before she could kill him, and believes that because of their demon nature, a Downworlder and a Shadowhunter could never be together. While Aldertree continues to work on the Institute's system, four Circle members arrive, however Isabelle also arrives in time to kill them before they can hurt them.

After the Soul-Sword is activated and kills the werewolves, seelies, and vampires that teamed up in an attack against Valentine, Alec rushes to the location of destruction. Not seeing Magnus among the dead, he searches the entire Institute to find him. It isn't until morning that he runs outside in a last attempt to find him. He feels a hand on his shoulder and sees that it's Magnus, and embraces him tightly. While still breathing heavily, he confesses how scared he was not knowing if Magnus was alive, and tells him he loves him. When Magnus says he feels the same, they kiss.[19]


After Valentine's capture, Alec trains with Jace who is still guilt-ridden about having activated the soul sword.


As the eldest of Lightwood siblings, Alec has a very serious, cautious, and by-the-book demeanor, answering to the Clave for reports and missions, following every law and every rule. He has a habit of being blunt and is extremely distrustful of newcomers, and Simon once referenced that his bedside manner is 'abysmal'.

Despite this, he is loyal to his friends and is fiercely protective of them, going along with his friends' missions to keep them safe even though he disapproves. Alec takes his duty extremely seriously and often steps in front of others to keep them safe, instinctively putting others ahead of himself and taking responsibility for and of others, regardless of whether he finds them agreeable or not.

Alec is gay but was in denial and reluctant to admit this to himself for years due to Shadowhunter society still finding the subject taboo. Furthermore, his feelings for his parabatai and adoptive brother, Jace, gave him another reason to stay in the closet, as romantic relationships between parabatai are forbidden. This made him a deeply conflicted individual, torn between being himself and not bringing shame to his family. After meeting Magnus, Alec has chosen to do what's right for himself and is now out to everyone. This has lead to Alec growing more comfortable with himself and showing a happier side of himself.

While Alec can be harsh, he's also a deeply caring and affectionate person who won't hesitate to reach out to his family and be at their side when they need him. He's observant, and will often notice when someone he cares about is going through something, usually expressing concern when he does. Alec has a tendency to take responsibility for things and blame himself, especially in regards to people he loves being hurt or upset, even if he had little to do with the situation in the first place. When something is wrong, there's little he wouldn't do to put things right. 

Skills and abilities

  • Nephilim physiology: Being Nephilim, Alec possesses a variety of enhanced physical and mental abilities granted to him by the angel blood of Raziel in his veins and also by the angelic Marks of the Gray Book. This includes enhanced strength, speed, agility, stamina, and coordination, which continue to improve over time and practice.
    • The Sight: As a Shadowhunter, Alec is naturally and easily able to see through most magical illusions and layers of glamour over reality.
    • Runic magic: Due to the angel blood in their veins, all Shadowhunters are able to apply runes on their skin without any real danger. These Marks, in turn, give varied effects that serve to benefit the wearer.
    • Use of heavenly weapons: As a Shadowhunter, Alec is also able to perform tasks unique to their species, such as the ability to use and call on the power of angels for their seraph blades, as well as to handle any heavenly weapons or objects with effect, which would normally not work for other species. In particular, these are tools made of adamas and forged by Iron Sisters.
  • Parabatai bond: Due to his parabatai bond with Jace Wayland, Alec is able to call on more strength in battle and is able to use certain runes or magic exclusive to parabatai. The runes drawn on him by, or shared with, Jace also give a considerably stronger effect.
  • Expert hand-to-hand combat: Alec is highly skilled in armed and unarmed combat.
  • Expert archer and marksman: Alec is highly skilled and proficient in marksmanship and archery.



Season One appearances: 13/13
The Mortal Cup:
The Descent Into Hell Isn't Easy:
Dead Man's Party:
Raising Hell:
Moo Shu to Go:
Of Men and Angels:
Major Arcana:
Bad Blood:
Rise Up:
This World Inverted:
Blood Calls To Blood:
Morning Star:
Season Two appearances: 20/20
This Guilty Blood:
A Door Into the Dark:
Parabatai Lost:
Day of Wrath:
Dust and Shadows:
Iron Sisters:
How Are Thou Fallen:
Love is a Devil:
Bound By Blood:
By the Light of Dawn:
Mea Maxima Culpa:
You Are Not Your Own:
Those of Demon Blood:
The Fair Folk:
A Problem of Memory:
May be featured
Day of Atonement:
May be featured
A Dark Reflection:
May be featured
Awake, Arise, or...:
May be featured
Hail and Farewell:
May be featured
Beside Still Water:
May be featured


See more here


  • At one point in his life, Alec lied to his sister about being involved with a girl named Jessica Hawkblue.
  • Before Magnus, Alec had never been in a real relationship.

Behind the scenes


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