Jannalynn Hopper is described as a flashy dresser with a violent streak. She belongs to Alcide Herveaux's wolf pack and she starts to date Sam Merlotte in Dead in the Family. She becomes Alcide's second in command after Annabelle, another new arrival to the series, betrays his trust and was banished from the pack.
Jannaylnn is a werewolf and a member of the Long Tooth Pack. When Alcide assends to packmaster she rises to the rank of enforcer some months later after issues arise between Alcide's second and the enforcer of the pack. Jannalynn also is Sam Merlotte's girlfriend. She is known to be a fierce fighter.
Jannalynn begins working for Claude Crane, her task is to get Sookie Stackhouse into trouble so Niall will open the portal from fairy and come to her aid. Jannalynn's deal is discovered and she exposes her dealings to the polices in a letter then phone call before she is left to fight with Mustapha. During the fight she goes after Alcide but instead strikes Sam with a fatal blow. Mustapha beheads Jannalynn ending her bid to overthrow Alcide to become packmaster.