|Portrayed by Aidan Turner|
|Full name:||Lucian Graymark|
|Significant Other/s:||Jocelyn Fray (fiancee)|
- "I know you can walk in the sun, Simon, and so you pride yourself on being a normal human boy, but you’re still what you are. Just like I am. The more you try to crush your true nature, the more it will control you. Be what you are. No one who really loves you will stop."
- —Luke to Simon, City of Fallen Angels
Lucian Graymark was born into the Graymark family. He grew up in Idris alongside his sister, Amatis. He was close friend with Jocelyn Fairchild his entire life. When they were old enough, He and Jocelyn were sent to Alicante to begin training. He was vastly behind on his studies, not being able to complete the simplest techniques or bear any marks. He often contemplated killing himself, returning home in shame, or becoming a mundane.
Worst Day of His Life
The single worst day of Lucian's life, in his opinion, was the day that Jocleyn married Valentine. Jocelyn and Valentine had been dating for years, but still married young. For his entire life, Lucian was in love with Jocelyn. However, he wanted her to be happy and never told her how he felt, thinking that her being with Valentine was what was best for her. In a chapter of City of Lost Souls, Jocelyn recalls when she walked down the aisle and looked at Luke, she remembers wondering if Luke was sick since he looked as though he were in physical pain as she walked down the aisle.
The day of the marriage, Lucian was best man. He reluctantly celebrated the event, but when someone joked that he would have had to marry Jocelyn had Valentine not shown up, Lucian paled. Jocelyn mistook this for him not loving her, but in reality he was actually upset over the joke.
Luke was once a follower of Valentine Morgenstern in the Circle. He was the second in command and Valentine's most trusted advisor. They were the ultimate hunting pair and worked tirelessly together. Lucian was one of the few Circle members who had doubts about killing Downworlders. However, he went along with it because Jocelyn asked him to.
Becoming a Werewolf
When Jocelyn was pregnant with her first child, she came to Lucian and told him that she had grown afraid of her husband. She had heard screaming through the walls and Valentine had been returning at odd hours of the night. Lucian trusted Valentine. Therefore, to appease Jocelyn, he asked Valentine about it. Valentine simply waves it off as a pregnant woman's imagination.
That night, Valentine asked Lucian to go hunting with him. They went to a werewolf camp and Valentine said he would cover Lucian's back. As they were parabatai, Lucian believed him. The next thing he knew, the werewolf's jaw was clamped on his shoulder.
Valentine brought Lucian back to his home and he and Jocelyn watched over him. They took care of him until the next full moon; when he transformed. Then next morning, Lucian stumbled up to the Fairchild Manor. Jocelyn tried to comfort him, but Valentine took him outside and told him to kill himself, giving him a blade to do so. Instead, Luke hunted down the werewolf that turned him, who was also the leader of the pack. He challenged him to a duel and they began to fight. After hours of fighting, Lucian killed him. He returned to the pack, initially expecting them to kill him, instead they "bared their throats" to him. This causing him to realize he was now the new Alpha and leader.
When Jocelyn came looking for Lucian, he was thrilled. Together, they began to plan the Uprising. They contacted the warlocks, faeries, and vampires to tell them to prepare. When the signing of the Accords came to pass, Lucian hid in Amatis' cellar. When the fight took place, Lucian went straight for Valentine. Wielding the dagger that Valentine gave him to tell him to kill himself with, the two began to fight. After a while, Jocelyn came up to try and stop them. Valentine threw her silver locket at him and the chain burned is skin. In that moment, Valentine disappeared.
Lucian and Jocelyn rode to Fairchild Manor. Jocelyn arrived first and Lucian found her weeping in the ruins of her home. The two of them then fled from Idris.
They fled to London. Neither had any money with them, but Jocelyn refused to ask the Institute there for help. She had lost too much and she wanted to live a peaceful life. Lucian offered to marry Jocelyn, but never confessed that he wanted to do it out of his true love and made Jocelyn assume as though he was doing it out of duty and wanting to keep her safe; so she declined his offer. Afterwards, Jocelyn left him behind. The last words she spoke to him were "Valentine is not dead" as she hugged him goodbye.
Lucian returned to his pack, leading them for several years. He signed The Accords when they passed, but he couldn't help missing Jocelyn. Therefore, Lucian went looking for her.
Throughout the whole search, he kept thinking about New York and the exiled Shadowhunters there. When he arrived in New York, he sent word through Downworld about Jocelyn. However, no news ever came up. He searched through the city for about a year before finding her by accident. He was in Soho when he saw a painting of hers in a gallery. Within the day, he found her. When he knocked on the door of her apartment, it was opened by a young Clary. Having missed him since they departed, Jocelyn allowed him to stay for one night. That night, she saw him sitting with Clary, teaching her a card game from Idris. He looked so at home there that she couldn't ask him to leave and he began his life as Luke Garroway, also finally becoming a part of Jocelyn's and Clary's life.
He soon opened up a bookstore where Clary frequently stayed over with him, He became a surrogate uncle to Clary, taking her and Jocelyn to an upstate ranch he bought and playing with Clary in the park. She called him 'Uncle Luke' and often wished he was her father, eventually even viewing him as so.
City of Bones
Luke is helping Jocelyn pack for their trip to the country. However, Jocelyn is attacked before they could leave. Luke visits the scene and can't discover anything before returning home.
He quickly hunts down the closest werewolf pack and kills the leader in cold blood. With that done, he begins to help Clary. One day, he returns home with Pangborn and Blackwell tailing him. They ask him for the Mortal Cup, but he doesn't know where Jocleyn hid it.
Luke sends werewolves out to protect Clary, forcing them to raid the Hotel Dumort.
Luke is again seen after Hodge Starkweather is freed from his curse. He attacks Clary, but is intercepted by Luke. Luke nearly kills him but is more worried about Clary so he survives. He takes Clary back to the pack to be taken care of. They discuss where Valentine is hiding and eventually decide on Renwicks. Luke tells his story to Clary and then they set off for Renwick's Ruin.
Luke and his pack kill the Forsaken and Luke and Clary discover Jocelyn. Luke then kills Blackwell and begins to fight Pangborn. He later comes in and fights Valentine as well, but is wounded. He is protected by Jace from being killed and is taken to be healed.
City of Ashes
Luke spends most of his time in the hospital with Jocelyn, even going as far as to skip meals and sleep. He helps Clary and her friends rescue Simon and Maia from Valentine's ship.
City of Glass
Luke travels with Clary through her portal rune in Idris where Clary gets poisoned by the waters of Lake Lyn. Luke helps them and soon they reach Alicante. There Luke leaves Clary to the care of his sister Amatis and goes to find his old pack of werewolves. He is one of the people who supports the union between Downworlders and Shadowhunters and opposes the idea of surrendering to Valentine.
Before the battle, he and Jocelyn exchange their powers through Clary's new 'Alliance' rune. In the end of the battle, Luke finds Clary and Jace as well as Valentine's corpse, he is the one to farewell him. He also present in Valentine's funeral. After these events he is nominated as the representative of the werewolves in the newformed Conclave. In the epilogue of the novel before he leaves for the Conclave, he finally tells Jocelyn how he feels about her, clearly surprising her. When she doesn't say anything, simply looking at him, he suggests they can just forget about what he said and leaves. However (after Amatis comes in and urges her to go after him upon realizing that Jocelyn loves Luke as well, being able to tell through Jocelyn's facial expression) instead, Jocelyn runs after him confessing her feelings for him. It is shown that they finally became a couple after this when they can be seen together holding hands the celebration of the successful war. They decide to marry and leave for New York.
City of Fallen Angels
Luke and Jocelyn are planning their wedding and are "disgustingly in love" as described by Clary. However, Lilith's plans interrupt their wedding planning. Luke is not present in the events leading in Jonathan's resurrection.
City of Lost Souls
Luke is mortally wounded by Jonathan the night that Jonathan and Jace visit Clary with hopes of taking her with them. Jocelyn moves him to the fire fighting station where his pack are, in hopes that they will help him. Maia Roberts and Jordan Kyle start a trip in order to visit the Praetor Lupus library and find a medicine for Luke's wound made by demon metal. Luckily they find a medicine and soon Luke heals but he still cannot take any part in Clary's rescue from Jonathan, still requiring resting.
When he rests, Jocelyn reveals how she wishes he had told her how he felt about her sooner so she would have done things right and "married the right guy". When Luke says she would have married Valentine anyway, she firmly states she would have married Luke instead; and says that if she had "things would have been different". But Luke doesn't regret how things turned out saying if things had been different, "they" wouldn't have Clary. This making Jocelyn happy since he said so "as though he was sure that Clary was his own daughter".
Luke is said to be calm, level-headed, and righteous. He is also fiercely loyal to those he loves. Luke never agreed with Jocelyn trying to take Clary's memories, believing that they were hers to have and that she had a right to know about her own heritage.