This is a list of characters from the light novel, anime, and manga series The Familiar of Zero.
Main characters Louise
is a second-year student at the Tristain Academy of Magic. She is the third daughter of the Vallière family, an aristocratic family well known in the school. Louise is nicknamed "Louise the Zero" for her apparently-poor magic abilities, and masks her insecurity and hurt feelings with arrogance. She considers it her responsibility to ensure Princess Henrietta's safety and well-being. During a ceremony where all second-year students summon their peers, Louise summons Saito Hiraga (a human). She treats Saito as a slave at first, having him wash her clothes and sleep on a bed of straw. Louise is jealous when Saito interacts with other girls, and whips him with a riding crop or blows him up. As the series progresses, Louise falls in love with him. In the 14th light novel, Louise has Tiffania erase her memories of Saito so that she will not be corrupted. Saito restores Louise's memory by sharing his own with a kiss, after which she becomes tsundere.
During Albion's invasion of Tristain, Louise discovers that she is a rare Void Mage (descended from Brimir, the founder of Halkeginia 6,000 years ago), which explains her failure to perform other forms of magic. Her Void spell is "Explosion"; her powers can destroy armies, but takes time to cast. Louise sheds her status as an aristocrat to rescue her classmate, Tabitha, when she is taken prisoner by her uncle. After they return, the Queen of Tristain adopts Louise as a sister (placing Louise second in line to the throne). Louise becomes a priestess with Tiffa for the Pope's anniversary enthronement.
At the end of the fourth anime series Louise and Saito defeat the Ancient Dragon, affirm their love for each other, and are married. After the wedding, Louise uses her World Door spell to go to Japan with Saito and visit his parents.
Louise is named after Louise de La Vallière, a French noblewoman who was the mistress of Louis XIV from 1661 to 1667. In 2007, Rie Kugimiya was nominated for Best Actress in a Leading Role at the first Seiyu Awards for voicing Louise. She was the third-most-popular Rie Kugimiya character in an Anime! Anime! poll on Kugimiya's 39th birthday in 2018. Comic Book Resources called her the "Weakest Isekai Hero" and the worst tsundere character, saying that she "is much more than just a textbook example of a tsundere" and "she creates one of the slowest burning, most annoying build-ups to a relationship that ever had the misfortune of actually happening." Louise was fourth in Da Vinci News' "Top 7 Pink-Haired Anime Heroines" poll, with one respondent saying that they were infected with . Capsule Computers considered Louise unique; while "[m]ost characters held a reasonable degree of emotion when speaking, [...] Louise was definitely the stand out character from a vocal standpoint." Her character CD, released on 10 October 2007, was number 187 on the Oricon Singles Chart on 22 October of that year. Louise's Princesse no Rondo album, released on 3 September 2008, was number 141 on 15 September of that year.ゼロの使い魔 ～三美姫の輪舞～ キャラクターCD 1 感じるルイズ, Oricon (jp) Her song album, Zero no Tsukaima Louise BEST, was released on 4 February 2009 and charted at number 58 on 16 February.ゼロの使い魔 ルイズBEST, Oricon (jp) Her F drama CD album with Henrietta was released on 21 March 2012.ゼロの使い魔F 妄想CD1 ルイズ&アンリエッタ, Oricon (jp)
Saito Hiraga
is a human summoned from Tokyo as Louise's familiar. Walking home on a busy Tokyo street, a portal opens in front of him. When he touches it, he finds himself in Harkeginia and meets Louise. Saito is bonded as Louise's familiar by a sealing kiss, which shocks him. Louise and Saito do not get along at first, and Louise treats him poorly. As the series progresses, they understand each other and fall in love. Whenever Saito pays attention to another girl, Louise punishes him with her riding crop or a blast from her void explosion spell.
When Louise becomes a familiar with Saito, the runes "" are inscribed on Saito's left hand. They signify his status as , a familiar who can use any object crafted as a weapon by touching it; he can wield melee weapons and war machines which include a World War II A6M Zero fighter and a Tiger I, but not weapons crafted for ornamental purposes. A Gandálfr exists to protect a Void Mage as they cast their spells. After being mortally wounded from fighting Albion's army at the end of the second anime season, Saito is revived by Tiffania but loses his Gandálfr power until Louise summons him and renews his contract. He is knighted by Henrietta and made vice-captain of the student Undine Knights, led by Guiche.
In the fourth anime season, after Saito becomes the lord of the De Ornielle region, Saito also becomes Tiffania's familiar and gains an ability known as which allows him to boost Void magic to the user he touches; his life force is drained each time he uses it. This ability was depleted after fighting the Ancient Dragon, according to Derflinger. When they fail to destroy the Ancient Dragon the first time, Louise sends Saito back to his world with the World Door. Saito returns through a solar eclipse with a F-2A jet fighter, and they destroy the Ancient Dragon.
Saito's weapon is a cheap sword Louise bought, which is the talking sword Derflinger (Derf) (). Derflinger says that he was the partner of Gandálfr 6,000 years ago, and it is no coincidence that Saito and Derflinger are partners. Derflinger can absorb spells; apparently destroyed in Saito's first confrontation with the Ancient Dragon, he is dormant inside f Gandálfr. Saito is named after Gennai Hiraga (a Japanese scientist from the Edo period), and his name is written "ability man".Light Novel Characters Perfect File published by Takarajimasha. At the end of the fourth anime series, Saito and Louise are married. Capsule Computers cited his sarcasm as his "most well performed moment", and called his power "interesting". His F drama CD album with Guiche and Julio was released on 21 March 2012.ゼロの使い魔F 妄想CD4 才人&ギーシュ&ジュリオ, Oricon (jp)
Tristain Academy of Magic Students Tabitha
Tabitha (タバサ, Tabasa) is a quiet girl, a classmate of Louise, and Kirche's best friend. She enjoys reading, shows no emotion, says little about herself and often gives short, incomplete answers to questions. Her name is an alias; her real name is Charlotte Helene Orléans de Gallia (シャルロット, Sharurotto), daughter of the king's murdered brother and heiress to the throne of Gallia. Tabitha's mother was driven insane by a potent poison meant for her daughter. A doll given to Tabitha by her mother is named "Tabitha"; her mother sees the doll as her daughter, and her real daughter as an outsider who threatens to tear the family apart. Percerin, the family butler, says that her father's murder, her mother's madness, and harsh treatment by her usurping uncle made the previously lively, open Tabitha introverted.
Tabitha is a triangle mage who specializes in wind magic. She is a chevalier knight (the lowest rank), and develops feelings for Saito after he rescues her. Tabitha's familiar is Sylphid (also known as Illococoo), a nature dragon. During the fourth season, she receives a potion that restores her mother's sanity. Tabitha is proclaimed heir to the throne of Gallia, but postpones the coronation to live with Saito in De Ornielle with Louise and Siesta.
Her character CD, which she shares with Kirche, was released on 21 September 2006. Tabitha's Princesse no Rondo album was released on 24 September 2008, and charted at number 206 on 6 October.ゼロの使い魔 ゼロの使い魔 ～三美姫の輪舞～ キャラクターCD 4 感じるタバサ, Oricon (jp) Her F drama CD album with Siesta was released on 21 March 2012.ゼロの使い魔F 妄想CD2 シエスタ&タバサ, Oricon (jp)
Kirche
Louise's classmate is from a military family in Germania. She attends the academy, rather than a local school, because of her misbehavior. Kirche uses her attractiveness on men. Fire magic is her specialty, due to her passionate nature. Kirche enjoys making fun of Louise, because her family and the La Vallières are rivals. She is flirtatious and has dated many of the academy boys, but she is smitten with Saito; Louise punishes him for paying attention to Kirche. By the third series, her interest appears to be directed toward Colbert; she and Louise work together in critical situations. Kirche's familiar is a salamander named Flame, and her name means "church" in German. She falls in love with an older man, which is ironic because her refusal to marry one led to her enrollment in the academy. In the fourth anime series she and Montmorency spend more time together, and she is still fond of Saito.
Capsule Computers called Kirche's seduction her "most well-performed moment". Her character CD, which she shares with Tabitha, was released on 21 September 2006.
Guiche
Guiche de Grammont (ギーシュ, Gīshu) is one of Louise's classmates who, despite being in love with Montmorency, is a playboy who often flirts with other women. He comes from a noble family with a deep military history; his father is a general. Guiche's wand is in the form of a long-stemmed rose, and he specializes in Earth magic and summoning Valkyries. He dotes on his familiar, a giant mole named Verdandi.
When Saito exposes Guiche's two-timing, Guiche challenges him to a duel which he loses when the runes on Saito's hand activate. Guiche becomes self-conscious and timid during conflicts, but still tries to help his classmates. He and the academy boys enlist in the army for the Albion War. Guiche's company is the first one in the city of South Gotha, where he is wounded in battle and revived by a fairy named Tiffania. In the third season of the anime, Guiche becomes captain of the student Undine Knights and appoints Saito his vice-captain.
His character CD (shared with Montmorency) was released on 6 September 2006. Guiche's F drama CD album with Julio and Saito was released on 21 March 2012.
Montmorency
is Louise's classmate. Like most Tristain nobles she is proud, and made a contract with a Water Spirit. Montmorency has feelings for Guiche, and is jealous when he flirts with other girls. In the first anime season, she creates a love potion; Louise accidentally drinks it, and falls for Saito. Montmorency is one of the few female characters not competing for Saito's affection. Her familiar is a frog named Robin; her specialty is water magic, summoning the Water Spirit that has helped her family. Montmorency begins being included in the missions and spending more time with the main characters. She and Kirche grow closer, spending more time together after Tabitha leaves to rule her kingdom. Montmorency's character CD (shared with Guiche) was released on 6 September 2006.
Beatrice
is a student who is introduced in the third anime season as princess of a small, powerful country. She initially uses her position to bully Tiffania, and Guiche warns Saito not to confront her. After learning that Tiffania is a half-elf, Beatrice captures her and conducts a "heresy trial" for Tiffania to prove her loyalty to the humans' deity. When Louise says that Beatrice was lied about having the religious authority to conduct such a trial, the other students turn on Beatrice and give Tiffania the right to choose Beatrice's punishment; Tiffania forgives Beatrice, and asks her to be friends.
Malicorne
is a student at the Academy of Magic by Tristain, part of the Undine Knights under Guiche. Malicorne's familiar is an owl named Cubasil, and he has a vision spell that lets him see at least 15 miles. He has a crush on Tabitha's familiar, Illococo, before learning that she is a dragon in a human form.
Tiffania