"His last name isn't Heart for nothing you know."
- ―Jalen on William
William Heart is a member of the Detroit coven with Mordecai Coleman, Eden Love, Cameron Parker, Sophia Faye, Ariana Vega and former member Jalen Long, all of who have near death experience. He was mistreated by people in his human life and believes that humans show no respect to others except for those that do matter before meeting the Denali coven where he and his friends live with them. William is the youngest member of the coven and is very energetic with the ability to mimic any sound he hears.
He is portrayed by Jacob Bertrand.
Biography
Early life

William after getting into another fight.
William Heart was born on 2010 in Detroit, Michigan and is an only child. He was abandon at a dumpster by his parents when he was a baby and was an orphan who was looked after by a nun, Sister Agnes. She keeps him well behaved despite how childish he can be but none of the less, she cares about William as if he were her own son as William thinks of her as his mother. Throughout his life, William tends to get in fights, mostly for fun, due to how people treat him differently than others and also toying them due to how William can imitate their voices. One day, Sister Agnes was in the church with William cleaning the wounds he had gotten from another fight when a group of business men entered, telling the nun that their boss has bought the church and that they must leave. William is ready to fight and almost throws a punch, but Sister Agnes, smiling, grabs his wrist and shakes her head, telling him not to.

William as a vampire.
That night, William and Sister Agnes were in church when the place caught on fire with them in it. Due to the intense flames, the smoke causes the two to lose oxygen very fast. Sister Agnes dies from it but William manages to get them both however, he collapses from the lost oxygen and almost dies in front of the business who caused the fire and are about to shoot William when Mordecai Coleman, Jalen Long, Eden Love, Sophia Faye, Cameron Parker and Ariana Vega kills them and Jalen changes William into a vampire. William wakes up being introduced to them who have all been mistreated in their human lives. He joins them having a new family where they kill disrespectful humans from mistreating others. During that, William discovers his gift to perfectly mimic the voices and sounds of other people.
Three months later, they saw Steve and his assistant Spike who knows about the existence of vampires and William and the coven kept themselves hidden around them since then. Four months after that, they encountered Zoran, Barry, Max, Dawn and Virgil who love to cause trouble and the coven stop them at all cost continuing to do so whenever they run into them.
Value In Beliefs

In 2025, William and the coven continue their lives with their beliefs about humans. One afternoon, Sophia picked up danger from Zoran's coven attacking a group of vampires and a werewolf that are protecting humans (turning out to be half-human half-vampire hybrids). William and the coven came where he and Cameron tackled Barry who was fighting Emmett Cullen and chased Zoran's coven away and introduce themselves to the Cullens who were the ones in danger from Zoran's coven. The Cullens then realized that one of their family members Tiffany Stewart isn't with them who took off thinking Jalen and his friends are part of Zoran's coven and took off hoping to get their attention. Mordecai orders Jalen to find her and Jalen took off.
While Jalen went to look for Tiffany, the Detroit coven were with the Cullens where both covens were almost in a fight due to Mordecai insulting Renesmee Cullen and Lucina Stewart for their human traits after questioning the Cullens living with humans when Edward and Carlisle Cullen separated them where William is seen standing back and watches and the Cullens left the coven while calling them “human lovers.”
Awhile after the near fight with the Cullens, William and the others came across a house on fire and two kids are inside. Just when they were about to leave to the fact that their actions will be misinterpreted and to avoid being burned from the flames, they saw Lucas Stone and Edward go inside and came out alive and rescued the children successfully where William shows his appreciation of their actions. Mordecai offers the Cullens to stay at their place and when they arrived, they saw Jalen making out with Tiffany where William is admiring Jalen on women. Tiffany and Jalen went outside after an argument between Jalen and Mordecai when Tiffany was chased by Steve and Spike who believed they've finally found a vampire. The Olympic and Detroit coven came up with a plan to make Steve and Spike believe they were hallucinating about vampires and William took his part using his mimicking gift to sound like Jacob Black while Jacob appears in his wolf form and the covens scared off Steve and Spike. However, Jalen tells Tiffany that what's happening between them won't work resulting Tiffany to be hurt as she took off. After unsuccessfully finding Tiffany, Mordecai offers the Cullens the way to the airport for them to return home.
After Mordecai returns home, Jalen makes the decision to leave the coven to join the Cullens along with confessing his love for Tiffany so William said his goodbyes to Jalen as he leaves for Forks, Washington and became Tiffany's mate.
Have A Purpose

William at Jalen and Tiffany's wedding.
William and the Detroit coven were invited to Jalen and Tiffany's wedding. They attended the ceremony where Mordecai meets the leader of the Denali coven, the Cullen's other family that also survive on animal blood, Tanya where he developed romantic feelings for her and vice versa for Tanya. After the wedding, Tanya invites the Detroit coven to the Denali's home in Alaska to learn more about each other and has since then been living together due to Mordecai and Tanya's relationship as they became mates with William changing his diet. During the winter holidays, the two coven runs into Elena Margaret and her husband Asher Pennington. Elena was Jalen's foster sister who Jalen was framed for raping her. She makes the coven promise not to tell Jalen as she is trying to get him to remember her. At the end of the story, William and the two covens returned to Forks to attend Jalen's high school graduation as he and William and the rest of the Detroit coven reunite.
Long Live Life
The coven received word about mysterious metal vampires attacking and hears about them as vampires that were supposed to be dead and those that are alive today and are gifted. Metal vampires then attacked their city in Alaska and Eleazar, Kate, Eden and William followed them joined by Jasper Hale and Jalen leading to the metal vampires' hideout. Without thinking, Kate went inside and William follows her along with Eleazar and Eden after them but, along with the others, was taken and fallen under the control of a half-human half-vampire hybrid Skai using the sword called IL Mietitore Capacità. However, Skai was defeated by the Cullens and the sword was destroyed releasing the captured Detroit coven from his control.
The coven came later to attend Luna Snow and Lucien Summers' wedding.
Physical appearance

William is physically the youngest member of the coven being changed at age fourteen. He is 5’0” tall, making him the shortest of the coven, with shaggy gold hair, pale skin and red eyes that later became gold after joining the Denali coven feeding off of animal blood. His appearance almost can mistaken to be identified as an immortal child but not much since he’s around the same age as Jane and Alec when they were changed. Like all vampires, he is extremely beautiful.
Personality and traits
"Alright, let me at 'em! Let me at 'em!"
- ―William
Due to his young age appearance, William is described to be childish as he shows to be out of hand. He is also very energetic and loves for action to happen to him as well as challenging people to a fight. William is very loyal to the people he cares about deeply such as Sister Agnes and his coven.
Due to how William was treated in his human life and how his parents left him as a baby, he believes that humans are not to be respected from since they only care for those that do matter. After meeting the Denali coven, William saw the light of humans understanding that not all of them are bad.
Powers and abilities
Like other vampires, William has superior strength, enhanced reflexes, graceful movements and heightened senses. He is one of the fastest members of the coven; him, Eden, Cameron and Jalen before he joined the Cullens.
Due to William getting into fights all the time in his human life, he makes himself a good fighter as seen when fighting Zoran and his coven.
Mimicry

William mimicking as someone else.
"Hey I'm Lucas and I'm gonna be the hero to save those kids from being burned alive. Check me out!"
- ―William as Lucas
William has the gift to imitate the sound and voice of the thing or person perfectly. As long as he has heard the voice/sound at least once, William can mimic it of that person and deceive others.
As a human, William is very good at making sounds; sirens, bells, noises even people thus enhancing his ability to mimic sounds.
Relationships
William Heart is co-members with Mordecai Coleman, Eden Love, Cameron Parker, Sophia Faye, Ariana Vega and former co-member Jalen Long of the Detroit coven as well as co-members with the Denali coven; Tanya, Kate, Garrett, Carmen and Eleazar. With Jalen's marriage to Tiffany, William and the Detroit coven are an extended family to the Cullens.
Mordecai Coleman

William's coven mate: Mordecai Coleman.
"Yeah come on Mordy, I want in on the action."
- ―William to Mordecai
Mordecai Coleman is William’s coven mate and leader of the coven.
Mordecai and his coven saw William saving a nun when the church was on fire and William was dying from the intense lost of oxygen. At first Mordecai was unsure if William should be changed due to his young appearance possibly posing him as an immortal child, which is forbidden in the vampire world, but seeing William's actions, Mordecai agrees and lets Jalen turn William into a vampire. Like Mordecai, he was mistreated by people for no reasons and follows his belief about humans. That changes when Mordecai became Tanya's mate and they see the light of the humans. The two are very close like a family.
Jalen Long

William's former coven mate: Jalen Long.
"You are my idol. You're like the brother I never had. I worship you."
- ―William to Jalen
Jalen Long is William’s former coven mate and creator.
Jalen found William when he and his friends saw him come out of a church that was on fire carrying a nun. William was about to be shot by some business men who bought the church until Jalen and the others came in and killed the men. Knowing that William is too young to die, Jalen changed him into a vampire. Due to William's energetic playfulness and his physical young age, Jalen and William are considered close like brothers where Jalen states that William is a brother Jalen wish he has and William always views Jalen as an idol to look up to. After meeting the Cullens, Jalen decided to leave his old coven and join the Cullens which William supports him to do.
William came to Forks joining Jalen on his bachelor party and attended Jalen's wedding. William later returned with the Denalis who he and everyone else joined as well as changing their diet and attended Jalen's high school graduation.
Eden Love

William's coven mate: Eden Love.
Eden Love is William’s coven mate.
The two first when William came out of the burning building and was about to get killed until the Detroit coven stops the people responsible for it. When William was dying, Eden voted for him to be changed into a vampire knowing he's too young to die. After William is changed and wakes up from his transformation, he joins the coven. The two of them care about each other deeply as they both have common ground on how they were mistreated in their human lives. They are both the fastest members of the coven along with Cameron and Jalen before he joined the Cullens.
Sophia Faye

William's coven mate: Sophia Faye.
Sophia Faye is William’s coven mate.
The two first when William came out of the burning building and was about to get killed until the Detroit coven stops the people responsible for it. When William was dying, Sophia voted for him to be changed into a vampire knowing he's too young to die. After William is changed and wakes up from his transformation, he joins the coven. The two of them care about each other deeply as they both have common ground on how they were mistreated in their human lives as well as similar personalities on wanting action and not hesitating to make a move due to William's youthful appearance.
Cameron Parker

William's coven mate: Cameron Parker.
Cameron Parker is William’s coven mate.
The two first met when William came out of the burning building and was about to get killed until the Detroit coven stops the people responsible for it. When William was dying, Cameron voted for him to be changed into a vampire knowing he's too young to die. After William is changed and wakes up from his transformation, he joins the coven. The two of them care about each other deeply as they both have common ground on how they were mistreated in their human lives. They are often seen teaming up when fighting someone such as Zoran and his coven.
Ariana Vega

William's coven mate: Ariana Vega.
"Oh get over it Ariana, you and Jalen were never meant to be."
- ―William to Ariana
Ariana Vega is William’s coven mate.
The two first met when William came out of the burning building and was about to get killed until the Detroit coven stops the people responsible for it. When William was dying, Ariana voted for him to be changed into a vampire knowing he's too young to die and believes he poses no trouble to be mistaken as an immortal child. After William is changed and wakes up from his transformation, he joins the coven. Not much interaction is seen between the two on how close they are but the two does care about each other since they both have been mistreated in their human lives.