Kallen Stadfeld

Kallen Stadfeld, real name Kallen Kozuki, is one of the main characters from the Code Geass: Lelouch of the Rebellion anime and manga.

Kallen is a young Britannian-Japanese woman, who believes herself to be Japanese at heart and prefers to be known by her Japanese mother's name. Her mother is an Eleven who stayed with her children for most of their lives. Her brother, Naoto Kōzuki, with whom she had a deep connection, was a former leader of a resistance organization before his death. After his death, Kallen became a member of the same guerilla resistance group against Britannia, which would later be reformed into the Order of the Black Knights by Lelouch vi Britannia several years later.

Appearance
Kallen is a young woman who has a slim yet strong build, and fair skin. Her most distinguishing features are her big blue eyes and her red hair, which she had combed down at school but spiked up when fighting or in her own privacy. She has an average height, being slightly taller than C.C..

When she is fighting in her original Knightmare, an outdated Glasgow, Kallen wore a vest-shorts combination. Once she begins to pilot the Guren Mark II, she wears a magenta suit that zips up to her neck. Other times, Kallen is seen wearing a standard Black Knights uniform.

In school, Kallen wears a ladies' school uniform. While at important reunions or during her brief time as a prisoner, she wore a yellow, fashionable dress to an elegant blue dress.

Personality
Kallen is a strong-willed, determined, loyal and brave individual who can also be quite short-tempered, forceful and somewhat impulsive. Despite her tough attitude, Kallen is actually quite sensitive, compassive and truly gentle, however after the death of her brother she doesn't show this side much any more. Her brother's death has also affected her relationship with her parents, though over time Kallen begins to renew her relationship with her mother, and like her brother, she becomes one of Kallen's reasons to liberate Japan. Her relationship with her father, both before and after Britannia took over Japan, is never elaborated on, though she did referred to him as "dad" on one occasion, implying that their relationship is (or at least was) probably positive.

While being both Japanese and Britannian, Kallen had the ability to live a normal life. However, she refused to fully accept her Britannian side as it would mean abandoning her Japanese friends, people, and self; thus making her one of the few selfless characters in all the series. On multiple occasions at the beginning of the series, she had claimed that she hates Britannians, though that was clearly an exaggeration as Kallen has been seen caring about Britannian civilians on multiple occasions, a prime example being her visible concern for the Student Council during the Lake Kawaguchi incident. Her character arc can be summarized as thus: she transforms from an emotional, somewhat prejudice, untrusting girl in a tawdry rebellion into a confident, capable fighter with a much stronger sense of justice and morality, willing to put aside her feelings and interests to protect those she loves and cares about.

At Ashford Academy, Kallen was forced to hide her identity in order to avoid suspicion, which caused her to change her hairstyle and her true personality. Whereas normally Kallen is powerful, confident, willful, and Japanese-favoring, at school she was a milquetoast, withdrawn ill girl who didn't speak up very much (the ill part was to hide her recreational activities as a Black Knight). In spite of this, she was welcomed fondly into the Student Council, which becomes a significant factor in her character development. However, when she felt under suspicion, Kallen often readied the knife that she conceals in a small pink pouch, showing what she would do to keep her identity secret. After finally changing Britannia's political system and gaining liberty for Japan due to Zero and his closest allies, Kallen begins to show her true feisty nature as her school while still being a member of the Black Knights.

In battle, Kallen is aggressive (this could be due to the fact that her weapons are mainly-close range), often ruthless, and very opportunistic. Her code name, Q-1, is a shortened version of the "Queen" on a chessboard, the strongest piece in a chess game. She is very confident in her Knightmare piloting capabilities as well as her own abilities and rightfully so - her Guren annihilated most of Cornelia's forces during the Battle of Narita, and could even defeat two powerful Knights of the Round at later battles. However, despite being one of the very best pilots in the series, if not the very best, she is not indestructible; as shown by her eventual capture in R2.

Piloting Skills and Battle Prowess
Kallen is an extremely skilled Knightmare Frame pilot, rivaling the abilities of even the Knights of Rounds. She is acknowledged as the ace pilot of the Black Knights by enemies and allies alike. Her codename, "Q-1," references, in algebraic Chess notation, the Queen piece, the most powerful piece in chess. In Lelouch's assessment of the core members of the Black Knights, her "Combat Ability" score is 100 out of 100, matching that of Kyoshiro Tohdoh. It should also be noted that she was able to defeat Cornelia's personal squad, and later to the Knight of Ten, Luciano Bradley. She even could fight with the Knight of Zero, Suzaku Kururugi, on the same level even with his "live on" command activated. With the strong blasts and energy shots from the radiation arm of her Guren Mk-II, Kallen can take down almost any Knightmare Frame in a single attack should they allow her to make physical contact, apart of restraining their attacks with the strings of her Slash Harken projectiles and blocking their attacks with her fork knife by striking them down. Later models also have numerous secondary attack modes for mid- and long-range combat such as several improvements of its former weapons like more powerful explosions, while also gaining the Energy Wing System which gives her four wings which can acts as shields, projectiles and blades. Her Knightmare Frame is also incredibly fast, allowing her to fight on the same level as some of the most advanced Knightmare Frames in the series, and later also gaining the ability to flight at high speeds.

Outside of a Knightmare, Kallen displays superior fighting abilities at both armed and unarmed combat.

High Intelligence and Leadership
Kallen has shown high resourcefulness in battle, being able to see through her opponents' plans and usually takes advantage of their first mistakes or doubts in order to defeat them while making effective conterattacks. She also is apparently quite knowledgeable at academics since her grades in school are top of the class despite her frequent absences.

After passing more time at the Black Knights, Kallen has shown to be a good leader to her own squad's subordinates and even can be diplomatic to others while making plans at negotiations or tactics.

Trivia

 * Her Japanese surname, Kōzuki means "Red Moon" in Japanese.
 * "Kallen" (American name) meaning "Pure". "Karen" (Japanese name) meaning, which means "Beautiful like a Lily flower".
 * Kallen's plushie's name is "Tabatacchi"
 * In Lelouch's assessment of the core members of the Black Knights, Kallen has the highest Loyalty with a 100 of a 100.
 * "Q-1", the codename given to Kallen by Zero is in reference to the queen, the most powerful piece in the game of chess. A fitting name as Kallen is the Ace of the Black Knights and his closest ally aside from C.C.
 * In an interview reported by the anime magazine Newtype USA, Seiyuu Ami Koshimizu talked about the difficulty of voicing Kallen because of the double life that her character had. Certain aspects of Kallen's character such as her girlish naivete and competitiveness made it easy for the voice actress to relate, even to the point of admitting that in some ways they act very much the same.
 * As a running gag, Kallen ends up naked or immodestly dressed in front of other people on numerous occasions: Lelouch sees her naked after she pulls back a shower curtain in surprise in the third episode, Suzaku sees her bathing under a waterfall when they are stranded on Kaminejima Island, she is forced to dress as a Playboy Bunny at the start of the second season, and she walks in on a meeting between C.C. and the Chinese ambassadors wearing only a towel when attempting to complain about the previous situation to C.C. Another possible running gag is her relationship with Lelouch as they are set up in scenes where they almost kiss but always get interrupted,
 * Kallen Kōzuki has quite the number of similarities with Domon Kasshu from the Sunrise anime Mobile Fighter G Gundam, such as hairstyle, personality, penchant for skintight piloting wear, their respective mecha having the same finishing moves, to the point where fans often joke about Domon being her real Japanese father due to the fact his love interest, ‎Rain Mikamura, has the same seiyuu as Kallen's mother (Yuri Amano).


 * Aki Izayoi from Yu-Gi-Oh! 5D's bears a striking resemblance to Kallen; both sport a crimson theme as well as a similar hairstyle. Personality wise they are not exact, but similar since they try to isolate themselves from the present society during the story and are hostile to the people they perceive as enemies. They also have possible romantic feelings for the main protagonists of their respective series.
 * In Spice and Wolf, Holo, the main heroine of the series, was voiced by Ami Koshimizu who also voiced Kallen Kozuki. The main lead of this anime, Kraft Lawrence, was voiced by Jun Fukuyama who also voiced Lelouch Lamperouge/Lelouch vi Britannia/Zero.
 * It is notable that the anime was created after both actors, Jun Fukuyama and Ami Koshimizu, won the 1st Seiyu Awards for their respective roles in Code Geass - Lelouch of the Rebellion.
 * In SWRX during a DLC mission, after the Zero Requiem was over, she admits that she felt left out, and knowing that so many people knew about the plan, she felt that they didn’t believe in her. She even went as far as to tell Suzaku that they better not do it to her again.