-Jacob Black-Taylor Lautner-

Early life

Jacob was born to Billy and Sarah Black. Sarah died in a car crash when he was very young, though Jacob never speaks of this. He has two older sisters, Rachel and Rebecca. Rebecca moved to Hawaii and eventually married while Rachel, who had been off at college, returned later in Breaking Dawn and was imprinted on by Paul.

Twilight

Jacob has a small but very important role in Twilight. After Bella Swan flirts with him (as a way to get information), he introduces the idea of Edward Cullen being a vampire by telling her Quileute legends. He is later seen crashing Forks High's prom under his father's orders to tell Bella to break up with Edward. According to Stephenie Meyer  via her official website, Jacob was originally just a device to tell Bella about the "Cold Ones." However, both she and her editor liked Jacob so much that they decided to give him a larger role in the sequels to Twilight. He therefore becomes a main character in New Moon, Eclipse, and Breaking Dawn.

In the movie adaptation, we see more of Jacob Black. He first shows up to bring Bella her new truck and gives her tips on how to drive it. However, in the beach scene he doesn't physically tell her what Edward is. In turn, forcing her to do her own digging to get the answer she wants.

New Moon

Bella becomes very good friends with Jacob, the son of her father's friend Billy Black, after Edward leaves Forks in New Moon. Jacob helps her become somewhat happy and normal again, though she still misses Edward. New Moon reveals that Jacob is one of an ancient line of Quileute werewolves. They are the mortal enemies of all vampires, including the Cullen family. At first Jacob thinks all this is a bunch of superstition, and he becomes frightened and disturbed by the influence a young man on the reservation, Sam Uley, has on some of the Quileute youth. After Jacob goes through a sudden transformation to a werewolf, it is revealed that Sam, the leader of Jacob's pack, was the first to make the transformation in several generations. He'd gone though his own hardships during the change, including a rather bloody incident with his girlfriend (now fiancée) Emily Young. As werewolves are short-tempered, highly violent, and likely to explode into wolf form when provoked to anger, Jacob initially promises his pack he would stay away from Bella. He and his new friends patrol the forest, searching for the vampires in the area who are killing local hikers. Jacob and the pack save Bella from the vampire Laurent (from Twilight), who is trying to kill her. Before the over-sized wolves chase him off, Laurent tells Bella that Victoria (also from Twilight) wants revenge on Edward for killing James, her mate.

Sometime later, Jacob unexpectedly shows up at Bella's bedroom window and apologizes for a recent fight and for avoiding her. When she asks him what's happening with him, he claims that he can't tell her, but leaves her a clue to what he and the rest of Sam's group is. Bella remembers the stories Jacob told her (in Twilight), about the Quileutes being descendants from wolves. The next day, she confirms that Jacob is a werewolf. She later confronts him, assuming his pack to be behind the recent murders in the forest. Jacob convinces her that their job is to protect humans from vampires, and they would never harm anyone. He also tells her that Laurent is dead, and together they figure out that a certain red-headed vampire terrorizing the werewolves and hikers in the forest is actually Victoria. But when Jacob calls his pack to give them the news, they are indignant that Bella has learned their secret. Paul, one of the pack members, loses his temper, phases into his wolf form and tries to attack Bella. Jacob quickly phases into a wolf and viciously mauls Paul, chasing him into the woods. Bella and Charlie spend much of their time in La Push during Bella's spring break. Jacob and Bella renew their friendship, and Jacob tells Bella what it's like being a werewolf. Sometime later, Bella, still in grief over losing Edward, goes cliff-diving and nearly drowns before Jacob pulls her out of the water.

Upon returning to the Blacks' home, Bella and Jacob learn that Charlie and Billy's friend Harry Clearwater  has died of a heart attack; a quick succession of events later that evening and the next day pry Bella and Jacob apart. Jacob drives Bella home, only to discover that Alice  has inexplicably turned up there; Jacob recoils from her presence and flees to La Push to regroup. He returns to the Swans' home the next day to apologize to Bella; they nearly kiss when the phone interrupts them. When Jacob answers, he mistakes Edward's voice for Carlisle's, and, refusing to surrender much information, tells the caller that Chief Swan was attending a funeral. Having received cryptic information, Edward assumes the funeral is for Bella, thinking she killed herself. Grief-stricken, he goes to see the Volturi, and Bella and Alice rush to stop him. Jacob is hurt and disgusted by Bella's choice, Edward's return, and Bella's willingness to go back to him and become a vampire.

In the epilogue of New Moon, Jacob reminds Edward of the Quileute-Cullen treaty, which forbids the Cullen family from biting humans. This means that if a member of the Cullen family turned Bella into a vampire, the treaty would be broken and the werewolves could start a war. Jacob is upset by the whole conversation, though Bella manages to calm him down before she and Edward leave. However, when Bella turns to look at Jacob one last time, she sees he is suffering in heart-wrenching emotional pain.

Eclipse

The third installment of the series begins with Jacob still trying to keep a safe distance away from Bella. She desperately tries to get a hold of him to talk, but he continues to ignore her attempts. He decides to write her a note instead. He is not comfortable with the idea of Bella walking around with a vampire. The thought of it causes him to almost lose control with anger.

The book starts with Bella reading the note from Jacob. He has a hard time expressing himself in the note, as she reads through many unfinished sentences that end up being crossed out. The last comment in the note is not crossed out, and shows that even though he misses spending time with her, he is still angry with their situation.

Later on in the series, his affection towards Bella grows stronger. He's enraged by the fact that she will become a vampire after graduation, which is only a few weeks away. Bella feels bad that she's spending all her time with Edward  and so she sneaks off to visit Jacob. Jacob invites Bella to come with him to a Quileute council meeting, and she accepts. Jacob and Bella spend the night together and listen to tribe legends, believed to be real by the Quileute. When Edward realizes that he has been overprotective, he encourages Bella to visit him on a regular basis. On one of the later visits, Jacob tells Bella he loves her, and kisses her, thinking that Bella loves him back. Bella, outraged that he would kiss her after he knows that she loves Edward, punches him in the jaw and breaks her hand. Jacob brings Bella home and is threatened by Edward that if he ever kisses Bella without her consent again, he'll break Jacob's jaw for her. But Edward also claims that he would allow it to happen if Bella wanted to kiss him.

A while later, at a graduation party held at the Cullens' house that Jacob decides to go to, giving Bella a charm bracelet with a carving of a wolf on it as a graduation present. While he's there he learns that Victoria has amassed a newborn vampire army to attack Bella. Jacob and the pack eagerly agrees on joining forces with the Cullens and learning how to fight these vampires. Their original plan was to have Seth Clearwater watch over Bella in a remote mountain place while the Cullens and the rest of the werewolf pack fought off the vampires. Bella, however, wanted Edward with her when she stayed in the mountains, and asked Edward. Edward agreed as long as Jacob would carry her to the place in the mountains so that her scent would be lost. They followed through with the plan, and Jacob carried Bella to the mountain hideaway. While waiting for the battle to be over, Edward, Bella, and Jacob set up camp. A blizzard blows through the camp, and Bella begins to freeze. Jacob comes in the tent and stays in Bella's sleeping bag to warm her up with his abnormal body heat, much to Edward's chagrin.

During the night, Jacob asks Edward about his relationship with Bella and what it felt like to lose her. They talk and temporarily forget their hatred for each other.

In the morning, Bella wakes up and Jacob leaves the tent. Bella and Edward then start discussing their marriage plans. Jacob, for some reason did not leave the campsite, overhears their conversation, and runs away because he's so upset that they're getting married. Upon Bella's request, Edward brings Jacob back and leaves them alone to talk. After some talk, Jacob says that he's going to go and kill himself because Bella doesn't love him. Bella then begs and pleads with him not to. Bella says that she'll kiss him if he won't commit suicide. Jacob agrees and Bella kisses him. To begin with, it is simply Jacob returning the kiss, but after a few minutes Bella finds herself kissing him back passionately and realizes that she is in love with Jacob after all. Jacob then leaves to finish the battle, promising that he will try and not get himself killed, and gets injured in the battle trying to save a fellow werewolf, Leah Clearwater, from a newborn vampire. The newborn mangled all the bones on the right side of Jacob, before being destroyed by Sam. Carlisle patches him up and a worried Bella visits him.

Jacob is shocked to hear that Edward didn't get angry at Bella for kissing him. They talk and Bella tells him that, although she loves Jacob deeply, she has chosen Edward. While heartbroken over her choice, Jacob doesn't show it, and reluctantly agrees to stop trying to take Bella from Edward. Jacob reminds Bella that he will always be there for her whenever she needs him.

The epilogue is written from Jacob's point of view for the first time in the series. Jacob and Leah are sitting at the edge of a cliff, with Jacob thinking about how difficult it will be when Bella is turned into a vampire. Leah tells him to get over Bella, and Jacob angrily tells her to leave him alone before he goes home. At home he finds that Edward has sent him a wedding invitation to Bella and Edward's wedding. Enclosed was a note from Edward, saying that Jacob did not have to come to the wedding, but that if Edward was in Jacob's shoes, he would want a choice. Edward thanks Jacob for everything. Unable to endure his human emotions any longer, he phases into a wolf, and runs away.

Breaking Dawn

In Breaking Dawn, Jacob is mentioned to have been gone for almost two months now, and is trying to live the rest of his life as a wolf so he doesn't have to deal with the pain he is in. Jacob is first seen at Bella's wedding, since he's decided to attend after all, despite still being heartbroken over her rejecting him. He apologizes to Bella and tells her that he only wants her to be happy. However, he becomes violent towards Edward when he finds out about their plans to make love while Bella is still human and has to be restrained by Seth and Sam. During Bella and Edward's honeymoon, Jacob, rage-filled, imagines the different outcomes of the honeymoon.

When Bella finally returns from the honeymoon, Jacob believes Bella was turned and demands the pack attack the Cullens. Sam refuses to do so, and Jacob goes on a solo attack mission, leaving his own home in the process. He finds out that she is pregnant, though still human, and sees that Bella has purple and blue bruises on her stomach from where the hybrid baby has kicked. He talks with Edward, who doesn't want the baby because it is killing Bella, but cannot do anything because Rosalie Hale guards Bella, upon Bella's request. Rosalie's choice influences Emmett, Esme and Carlisle and so Edward cannot force Bella to have an abortion. Desperate, Edward asks Jacob to offer Bella to have babies with Jacob, which would be a much healthier pregnancy than the current one. Jacob is sickened but tempted by this offer and agrees to try to persuade Bella to have an abortion. He also promises Edward that he'll kill Edward if Bella dies.

He returns to Sam and tells him about Bella's pregnancy. The pack plan on killing Bella and the baby because they see the unborn baby as a threat. A threat which is also protected by members of the Cullens. Jacob still loves Bella, however, and revolts against Sam's authority as Alpha. He embraces the Alpha heritage born in him and breaks away from the pack. Seth and Leah Clearwater join him and they patrol the Cullens' territory, preventing Sam's pack from launching an attack.

While running patrols, Leah requests that she stay in Jacob's pack after Renesmee's birth. Jacob is taken back by this but agrees to think about it. Leah admits to Jacob that she understands Rosalie and Bella and that, if their positions were switched around, they would all do the same for each other. Jacob is enraged by this and is lead into an awkward (for him) conversation about Leah's being menopausal and her love for Sam. Jacob ends the conversation to go and check up on Bella.

A few days later, Edward hears the baby's mind for the first time, and he loves the unborn baby as it already loves Bella, leaving Jacob feeling betrayed. Edward hears this and gives the keys of his Aston Martin Vanquish to Jacob, so that Jacob might get away from them. Jacob desperately drives out to look for his soul mate, someone who he may imprint on, so that he would forget his love for Bella. His search ends up fruitless.

Jacob comes back and learns that the baby has broken yet more of Bella's bones. Edward asks Jacob, as heir to the chef, Ephraim Black, for permission to change Bella into a vampire after the birth of the hybrid. Feeling empty inside, Jacob agrees.

After Bella gives birth to a girl she names Renesmee, Bella appears to 'die' after Edward bites her to turn her into a vampire. Jacob goes off to kill Renesmee, but imprints on her when he sees her. He nicknames Renesmee, Nessie, because her real name is a mouthful. Bella is extremely irritated with the nickname because it refers to the Loch Ness Monster, and the fact that it catches on. He is extremely close to Renesmee, goes hunting with her, and for Christmas he braids her a bracelet that is the Quileute version of a promise ring. Jacob has a strong desire to protect her and to keep her happy and safe. It is likely that his feelings will eventually turn into romantic and sexual interests when she is older. It is hard for him to be separated from her, so he visits every day and almost never leaves the Cullen house. However, he states that once Renesmee's growing slows down, he will go back to school. Finally, Sam's pack stops trying to attack the Cullens, since the most important of the werewolf laws that one cannot kill the object of another wolf's imprinting, due to the damage it would cause to the wolf in question. It is also stated that Jacob's close friends, Quil and Embry, who stayed with Sam when Jacob when his separate way, also have joined Jacob's pack after Renesmee was born.

When the Volturi come (mistaking Renesmee for an immortal child), Bella plans for Jacob to run away with Renesmee to Rio de Janeiro, Brazil, so that they may be saved from the upcoming slaughter. She had forged passports made for the two of them, with Jacob as Jacob Wolfe, and Renesmee as Vanessa Wolfe. When the Volturi left shamefully and regretfully, Bella is overjoyed and calls Renesmee, 'Nessie'. At the end of Breaking Dawn, he, along with other wolves, hear from Edward that they are not really werewolves, but are rather shapeshifters with the ability to turn into wolves. After the Volturi's "trial", Jacob jokes that life will be "boring now", which Edward remarks that he fervently hopes so.

Wolf abilities

*Regeneration - As a wolf, he has a powerful regenerative healing factor. This allows his body to heal at an abnormal rate, faster than any human body can. The extent of this regeneration is very powerful, to the point that Jacob comments that even a bullet through his temple wouldn't be enough to kill him. Small cuts and minor injuries heal within seconds while larger, more damaging injuries, such as broken bones and blood loss, seem to heal within minutes.

*Phasing - Can phase in and out of werewolf form. With practice and skill, one can morph faster and with more efficiency, with Jacob being the one exception, being able to phase in mid-jump, while it takes the rest of the pack several seconds to phase.

*Telepathy - Only works within the pack, and when in wolf form. They can speak with each other telepathically and hear each other's thoughts. Though this is more than useful while hunting and tracking, there is no privacy left in the pack because of this ability. It can be described as both a gift and a burden. Their thoughts are open even when they tried to hide them. After Jacob formed a pack of his own, he is able to communicate those within his pack and Sam, the Alpha of his previous wolf pack, if he chooses to. Also, because his wolf mind is linked with his pack, Bella can protect him and his fellow wolves with her shield solely by shielding him.

*Physically enhanced - Has super-strength in both wolf and human form. This has been displayed numerous times, as how Jacob was able to carry Bella 9 miles through a thick forest with ease, taking less than half an hour. In wolf form, they are also exceptionally fast, running at a top speed of about 80 to 90 miles per hour. In human form they seem to have an average speed of about 30 to 40 miles per hour, about half the speed of vampires, and can lift an average of about 500 to 600 pounds. Before phasing, the human form will build up their muscles naturally and will be ready for the first time they phase. It can be speculated that werewolves are actually stronger than vampires due to the fact werewolves can build up their muscles, strength and endurance. Jacob is known as the physically strongest in both packs, though not as fast as Leah.

*Increased durability - Werewolves have a high durability rate, most famously seen when Bella struck Jacob in the jaw with all of her strength, and ended up badly breaking her hand while Jacob, who wasn't even remotely hurt, couldn't tell that she was trying to hurt him until she started screaming. This is also seen when Jacob, in Breaking Dawn, said that it would take a large truck, moving at high speed to break his bones. The same thing happens in Eclipse, during the war with the Seattle Newborn Army that it took a small group of newborns to crush his bones.

*Delayed aging - They cannot start aging until a solid period of time without phasing goes by. It is unknown the exact length of time, only it would be very difficult because phasing is instinctual, along with the fact that vampires often come through Washington and the werewolves are needed whenever vampires are close.

*High body temperature - Werewolves have a constant body temperature of about 110° degrees to withstand severe cold weather. This high body heat also allows them to survive in very hot weather, making it hard for their bodies to overheat. This high body temperature is very useful in combat, as it makes it extremely hard for vampires to harm them because they are extremely sensitive to heat. In Breaking Dawn, after Bella becomes a vampire, she describes Jacob's skin as like touching an open fire and unbearable to touch. This temperature also prevents frequent illness, by killing any potential pathogens they come into contact with before they can become ill.

*Alpha voice - As the Alpha of his pack, the wolf can force his followers to obey his orders whether they refuse or not. Jacob never uses his voice to force his teammates, though he has the power and it is even stronger than Sam's voice.

http://twilightsaga.wikia.com/wiki/Jacob_Black