William Erasmus "Bill" Compton is a fictional character from The Southern Vampire Mysteries/Sookie Stackhouse series by author Charlaine Harris. He is a vampire and is introduced in the first novel in the series, Dead Until Dark, and has appeared in all of the novels since. In the fifth season of the television adaption, Bill plays the role of the main antagonist.

Dahlia is a fictional character from The Southern Vampire Mysteries/Sookie Stackhouse Series by author Charlaine Harris. However, she only appears briefly in the novels and the only time she appears on the same page as Sookie Stackhouse is in All Together Dead. Dahlia is the main character in a computer game and in a growing number of non-Sookie-related—though set in the same fictional universe—short stories. She is a vampire and lives in the city of Rhodes, Iowa.

Sam Merlotte is a fictional character from The Southern Vampire Mysteries/Sookie Stackhouse Series by author Charlaine Harris.

Eric Northman is a fictional character in The Southern Vampire Mysteries, a series of thirteen books written by New York Times bestselling author Charlaine Harris. He is a vampire, slightly over one thousand years old, and is first introduced in the first novel, Dead Until Dark and appears in all subsequent novels. Since the book series is told from the first person perspective of Sookie Stackhouse, what readers perceive of his character is influenced by what Sookie comprehends. HBO's television series True Blood is based on this book series and the character of Eric Northman is portrayed somewhat differently. A list of True Blood characters has a detailed description of Eric's character from the TV show.

Pamela Ravenscroft, known as Pamela Swynford De Beaufort in True Blood, is a fictional character from The Southern Vampire Mysteries by author Charlaine Harris. She is a vampire, Eric Northman's lover and second-in-command and co-owner of Fangtasia, a vampire bar. Her age is not mentioned; Sookie thinks that she is over 200 years old. It is later revealed, in the short story "Two Blondes," that she's 160 years old, give or take a decade.

Jason Stackhouse is a fictional character from The Southern Vampire Mysteries book series by author Charlaine Harris. Introduced in the first novel, Dead Until Dark, Jason is Sookie Stackhouse's older brother and road crew supervisor for Bon Temps, Louisiana.

Sookie Stackhouse is a fictional character and protagonist of The Southern Vampire Mysteries book series, written by Charlaine Harris. In HBO's television adaptation, True Blood, Sookie is portrayed by Anna Paquin.

Tara Mae Thornton is a fictional character in Charlaine Harris's The Southern Vampire Mysteries and their television adaptation, HBO's True Blood.