List of The Familiar of Zero Characters - Main Characters

Main Characters

Louise Françoise Le Blanc de La Vallière (ルイズ・フランソワーズ・ル・ブラン・ド・ラ・ヴァリエール, Ruizu Furansowāzu ru Buran do ra Bariēru?)

Voiced by: Rie Kugimiya (Japanese), Cristina Valenzuela (English)

Louise Françoise Le Blanc de La Vallière (Born 6th August) is the female protagonist of the series. She is introduced as 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 Tristain. As a noble, Louise defends her honor as a benevolent person. She states that is her responsibility as a noble, to make sure her highness the princess is safe and that her familiar's well-being. Louise is a very stubborn girl. But, as Henrietta mentions, her heart is pure. Louise is nicknamed "Louise the Zero" for her seemingly poor magic abilities that usually result in explosions. During the ceremony when all second year students summon their familiars, Louise summons an ordinary human, Saito Hiraga. At first, Louise treats Saito as a servant or pet, having him wash her clothes, and having him lay on a bed of hay. Louise quickly becomes jealous whenever Saito interacts with other girls, and punishes him regularly by whipping him with a riding crop or blowing him up with her magic. As the series progresses, Louise begins to develop feelings towards Saito and eventually falls in love with him.

During Albion's invasion of Tristain, Louise discovers that she is an extremely rare Void Mage, an element descended from Brimir the Founder of Halkeginia from 6,000 years ago, which explains her consistent failure to perform other forms of magic. Her Void spell is 'Explosion', when released, her powers can easily destroy armies, yet takes time beforehand to cast it. Louise casts off her status as an aristocrat in order 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, which makes Louise second in line to the throne. Louise became a priestess, along with Tiffa, for the Pope’s anniversary enthronement.

At the end of the fourth anime series, Louise and Saito defeat an Ancient Dragon and affirm their love for each other and get married. As a result, after her marriage, she is known as Louise Françoise Le Blanc de Hiraga de Ornielle (平賀 ルイズ Hiraga Ruizu). After the wedding, Louise used her World Door spell to go to Japan to visit Saito's parents.

Louise is named after Louise de La Vallière, a French noblewoman who was the mistress of Louis XIV of France from 1661 to 1667. In 2007, Rie Kugimiya was nominated Best Actress in a Leading Role at the first Seiyu Awards for her work in voicing Louise.

Saito Hiraga (平賀才人, Hiraga Saito?)

Voiced by: Satoshi Hino (Japanese), Jonathan Meza (English)

* Titled Names: Saito Chevalier De Hiraga, Saito Chevalier De Hiraga De Ornielle

Saito Hiraga (Born 9th December) is the male protagonist of the series who was summoned from Earth (specifically Tokyo, Japan) to be Louise's familiar. Walking home a portal of some kind opened in front of him, he touched it and was sucked through, then finds himself in Halkeginia and meets Louise. Then the bond of him being her familiar, involves having a kiss with the familiar, which was a shock to him. At first Louise and Saito did not get along and Louise treated him quite poorly. But as the series progresses, the two eventually come to understand each other and fall in love. Whenever Saito pays any attention to another girl, especially her chest, Louise is quick to punish him. In the anime, Saito's punishment is usually a whipping from Louise's riding crop, a blast from her void explosion spell, or sometimes he is kicked in the crotch by Louise.

When Louise forms her familiar contract with Saito, the runes "" are inscribed on Saito's left hand. The runes signify Saito's status as Gandálfr (ガンダールヴ, Gandāruvu, "Gundolf" in Geneon anime, lit. "God's Left Hand"), a legendary familiar with the ability to excel in the use of any object crafted as a weapon simply by touching it; he can wield melee weapons and war machines that include a World War II A6M Zero Fighter (it does not extend to weapons crafted for ornamental purposes). As the series progresses, it is revealed that 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 he loses his Gandalfr power until Louise re-summons him and renews his contract. He is then knighted by Henrietta and made a vice-captain of the student Undine Knights by Guiche.

In the fourth anime season, after Saito becomes the lord of the region called De Ornielle, it is discovered that Saito is not just Louise's familiar, but also Tiffania's familiar. Therefore, he has a newly gained familiar ability known as Lifdrasir (God's Heart) that allows him to boost Void magic to the user he touches (his life is drained every time he uses this ability). This ability was depleted after fighting the Ancient Dragon, according to Derflinger. When they fought the Ancient Dragon, and fail to destroy it the first time, Louise sends Saito back to his world using the World Door. Later, Saito manages to come back through a solar eclipse with a F-2A Jet Fighter, and they then defeat the Ancient Dragon for good.

Saito's weapon is a cheap sword Louise bought, which turns out to be the talking sword Derflinger (Derf) (Voiced by: Tetsuo Gotō (Japanese), Kaiji Tang (English). Derflinger later reveals that he was once the partner of Gandálfr from 6,000 years ago, and that it was no coincidence that Saito and Derflinger are now partners. Derflinger has the ability to absorb spells. He was destroyed in Saito's first confrontation with the Ancient Dragon, but returns as he was actually dormant inside of Gandálfr. Saito is named after Gennai Hiraga, who was a Japanese scientist from the Edo period, and his name is written as "ability man". At the end of the fourth anime series, Saito and Louise get married.