•
Kaye Fierch – Kaye is the headstrong and independent protagonist of Tithe. She is secretly a changeling put in place of the real Kaye Fierch who resides in the Bright Court with Lady Silarial, though she herself is unaware of this until two-thirds of the way through the novel. She is intelligent, mature, and full of guile but sometimes naive. •
Ellen Fierch – Kaye's mother. A struggling rock singer, she tours the country with her rock band, Stepping Razor, until an attack by Nephamael in the form of a controlled Lloyd forces her to move back in with her own mother temporarily. Fiery spirited but caring, she is more of a friend to Kaye than a parental figure. •
Roiben (Rath Roiben Rye) – A noble Seelie knight traded to the Unseelie Queen before the beginning of the novel as part of a truce agreement between the courts. He is a strong fighter and feared by many. He has a strong attraction to Kaye for reasons he does not initially understand. He is one of the main supporting characters along with Corny. Inwardly hating the cruelty he is forced to perform for his new Queen, he thus harbours deep feelings of self-loathing and self-despair. •
Corny (Cornelius Stone) – Janet's older brother. He is quite antisocial and even entertains murderous fantasies, but he ends up bonding with Kaye. Along with Roiben, he is one of the main supporting characters. He is a computer geek who loves comic books and manga -
yaoi in particular. He is
gay and out to his sister and family, and comes out early on to Kaye. He enthusiastically helps Kaye when she discovers her faerie nature, but he is eventually seduced, enchanted, and captured by Nephamael who makes him his lover and slave. Corny seems to have a taste for submission and a certain level of pain, but he gets more than he bargained for with Nephamael. •
Janet Stone – Corny's younger sister and Kaye's best friend since elementary school. Suspects Kaye of flirting with Kenny, as Kenny is mentioned flirting with numerous girls in the novel. She is oblivious to her friend and brother's faerie dealings. Later on in the plot a kelpie drowns her during a rave that Kaye and Roiben attend. Kay tries to save her but is unable to. •
Lutie-Loo – One of Kaye's faerie friends from childhood. She is the classic 'Tinkerbell', being only as few inches high with cornsilk hair and wings. •
Spike – One of Kaye's faerie friends from childhood. Harbours strong dislike and distrust of Roiben. He is killed by Nephamael towards the end of the novel after giving him information in the hopes of gaining his favour. •
Gristle – The last of Kaye's faerie friends from childhood. He is killed by Roiben during a 'fox hunt' after stealing cakes from the Unseelie Court and does not appear in the novel. •
Nephamael – Initially a knight of the Unseelie court, he is traded for Roiben as part of the Queen's truce. He hates his new "home" and delights in taking the throne of the Night Court for himself at the end of the novel. He is cruel, manipulating and ruthless, and takes great pleasure in toying with humans and lesser faeries, especially when he meets Corny, whom he makes his pet. He ultimately pays the price for his cruelty, slain by Corny in a fit of murderous insanity whilst under the influence of magic. •
Silarial – The Seelie Queen, sister to Nicnevin and Roiben's former mistress. It is believed she orchestrated the whole plot to kill Kaye and free the solitary fey. •
Nicnevin – The Unseelie Queen, sister to Silarial. Beautiful as she is evil, she passes her days plotting against the Seelie kingdom and amusing herself and her subjects with cruel pastimes. She selects Kaye for the Tithe in order to gain control of the Soitary Fey, though the sacrifice is interrupted by Kaye taking control of Roiben during the ceremony. She is slain by Roiben during the ensuing chaos. •
Kenny – Janet's boyfriend, he becomes attracted to Kaye because she unwittingly enchanted him. •
The Kelpie – A murderous waterhorse and one of the Solitary Fey, who teaches Kaye magic and how to make a glamour in return for a carousel horse companion. He kills Janet later in the novel, luring her away from a party on the Pier. ==Critical reception==