The Black pack, also known as Jacob Black's pack, is formed when Sam Uley and his pack planned to kill Bella and Renesmee Cullen in Breaking Dawn, and prompted Jacob to embrace his rightful position as Alpha and break away from Sam's pack.
This pack consists initially of three wolves, Jacob Black, Seth Clearwater, and Leah Clearwater. In the novel, Embry Call and Quil Ateara V joined after tension between the Cullens and the Uley pack was resolved. At the end of 2006, both packs take in new members due to the increasing number of vampires. While Jacob is the Alpha, Leah and Embry act as his right and left hands, respectively.
Breaking Dawn

Black Pack: Jacob, Seth, and Leah.
In Breaking Dawn, Jacob was ready to kill the unborn Renesmee, but could not do so with Bella for he still had feelings for her. Sam planned to kill Bella to prevent whatever offspring she carried from being born, for the protection of the tribe, and tried to force Jacob to obey, but he refused. By accepting his rightful place as Alpha and refusing to take Sam's place in the pack, he decides to go rogue, but Seth Clearwater soon followed, not thinking it was right to attack their allies with no warning nor provocation. His sister, Leah joined soon afterwards to get away from Sam Uley and the memories of their failed relationship, and wound up becoming the pack's Beta. They were instrumental in guarding the Olympic coven in case Sam's pack was out looking for the Cullens and also to protect Bella during her pregnancy. Jacob's and Sam's packs resolved their tension when Jacob imprinted on Renesmee Cullen. In Breaking Dawn - Part 1, when a fight ensues between the Cullens and the Uley pack, Leah and Seth run to the Cullens' defense, equaling their strength until Jacob emerges to tell Sam about his imprinting on Renesmee, which stops the battle completely.
Afterwards, Jacob's pack claims the protection of La Push and the Cullens as their jobs, joined by Embry and Quil in the novel. While Jacob originally wanted to live as a wolf for a while and Seth decided to stay in his pack, the rest of the pack was bound to return to Sam's pack; the plan is cancelled when Jacob imprinted on Renesmee, and he officially embraces his position as Alpha male and the responsibilities that come with it.
When the Cullens are threatened by the Volturi and gather their vampire friends for assistance, Jacob reluctantly accepts them, and has Leah, Seth, Embry and Quil temporarily run with Sam's pack to avoid conflicts. The packs also gain new members due to the increasing number of vampires.

The Black pack among the Cullens and their allies.
This pack stands beside the Cullens and their allies during the confrontation with the Volturi. They were also joined by Sam's pack which had also grown in number. On this occasion, it is revealed that the pack is actually composed by shape-shifters who could change into wolves, and not actual werewolves. Unbeknownst to them, they are all under protection when Bella uses her shield to ward off the Volturi's powers. In this confrontation it is proved how interconnected the pack mind is, because as long as both Alphas were protected, both packs were protected from attack.
After the Volturi retreated, the pack celebrates their victory with their allies, then retreat to their territory. Only Jacob goes back to the Cullens' house later.
Members
In addition to Jacob, Seth, and Leah, the pack comprises Embry Call and Quil Ateara V. Leah eventually became the second-in-command of the pack, which Quil called "Beta". At the end of Breaking Dawn, the pack has gained three unnamed young members. According to The Twilight Saga: The Official Illustrated Guide, Embry is the third-in-command.
Member | Image | Position | Extra capability |
---|---|---|---|
Jacob Black | ![]() |
Alpha | Strongest wolf/Alpha voice |
Leah Clearwater | ![]() |
Beta/Second in command |
Improved speed |
Seth Clearwater | ![]() |
Third-in-command (movies only) | Improved hearing |
Embry Call | ![]() |
Third-in-command (novels only) | |
Quil Ateara V | ![]() |
Member (novels only) |

Jacob and the new pack members.
Near the end of Breaking Dawn, the Black Pack takes in new members due to the additional vampires in Forks, which forces some very young tribe members to phase. All of them are present during the confrontation.
Black pack extension
The Uley pack.
The Cullen family.
Charlie Swan and Renée Dwyer.
Trivia

Quileute tattoo.
- In the films, the members of the packs have a tattoo on their right shoulders depicting their membership within the pack, similar to the Volturi's necklaces and the Cullen crest.