Sanda is the manga by Paru Itagaki, creator of Beastars, adapted into anime by Science SARU. It is set in Japan in 2080, where a falling birth rate has led the state to tightly control the lives of children and teenagers, and Christmas has become an old legend because Santa Claus was sealed away. The protagonist, Kazushige Sanda, is a middle schooler who learns he descends from Santa and turns into him whenever he wears red. Most of the cast revolves around Daikoku Welfare Academy: classmates, the school's leadership and a special unit that hunts Santa. Because the core cast is small, this page covers 10 characters, described without spoilers.
Protagonist
Kazushige Sanda 三田一重
Daikoku Welfare Academy · Japanese voice: Ayumu Murase
Kazushige Sanda is the protagonist, a short, outgoing and good-hearted second-year middle schooler. He comes from Santa Claus's bloodline, and after a classmate breaks the seal on that power, he turns into Santa whenever he puts on something red. To change back he eats a candy called Bratty Beans. He likes helping friends with Christmas-related problems. Japanese voice: Ayumu Murase.
Main characters
Santa Claus サンタクロース
Japanese voice: Hiroki Tōchi
Santa Claus is the form Sanda takes when he wears red: a muscular old man in a red suit, far stronger than any adult. In this form he resists fire, can tell when someone is lying and grows skis on his feet to move quickly. There is also a darker version, Black Santa, meant for punishing people who behave badly. Japanese voice: Hiroki Tōchi.
Shiori Fuyumura 冬村四織
Daikoku Welfare Academy · Japanese voice: Umeka Shōji
Shiori Fuyumura is Sanda's classmate, tall, withdrawn and adult-looking. She is the one who breaks the seal and wakes the Santa inside him, because she needs that power to find her best friend, Ichie Ono, who has vanished. Fuyumura is willing to take risky and even dangerous steps to reach her goal, which keeps Sanda on edge. Japanese voice: Umeka Shōji.
Hitoshi Amaya 甘矢一詩
Daikoku Welfare Academy · Japanese voice: Yuuki Shin
Hitoshi Amaya is Sanda's best friend and roommate. His family runs a bakery, and he hopes Christmas traditions come back because that would help the business thrive. Cheerful and loyal, he sticks with Sanda through the chaos that comes with the Santa power. Japanese voice: Yuuki Shin.
Supporting characters
Ichie Ono 小野一会
Daikoku Welfare Academy · Japanese voice: Anna Nagase
Ichie Ono is Fuyumura's best friend, a kind student from a good family who still believes in Christmas in a world where almost no one does. Her sudden disappearance sets the story in motion: finding her is the reason Fuyumura seeks Santa's help. Her faith in Christmas is what links her to the power Sanda has just awakened. Japanese voice: Anna Nagase.
Niko Kazao 風尾二胡
Daikoku Welfare Academy · Japanese voice: Misato Matsuoka
Niko Kazao is an abrasive, bold student who loves thrills and risk. She is Sanda's fiancée in a match arranged by the state, since in this future the government even organises young people's engagements. Her impulsive streak often drags Sanda into tricky situations. Japanese voice: Misato Matsuoka.
Fumi Namatame 生田目二海
Daikoku Welfare Academy, Class 2-10 · Japanese voice: Mariya Ise
Fumi Namatame belongs to Class 2-10, a class with the grim reputation of having violently rebelled against the adults at school. Because of that, she and her classmates are feared by the rest of the academy. Firm and wary, Namatame is one of the students Sanda meets as he starts to uncover what the school is hiding. Japanese voice: Mariya Ise.
Toyo Tetsudome 鉄留十予
Daikoku Welfare Academy · Japanese voice: Masako Nozawa
Toyo Tetsudome is the elderly chief director of Daikoku Welfare Academy. Unlike Oshibu, who fights time with an artificial body, she accepts growing old as a natural part of life. That difference in how they see ageing helps show the conflicts inside the school. Japanese voice: Masako Nozawa.
Antagonists
Hifumi Oshibu 大渋一二三
Daikoku Welfare Academy · Japanese voice: Toshihiko Seki
Hifumi Oshibu is the headmaster of Daikoku Welfare Academy, a tyrannical man who at 92 keeps a youthful look thanks to a cyborg body. He is scheming to control how the students think and sees Santa as a threat to his plans. He is one of Sanda's first major opponents. Japanese voice: Toshihiko Seki.
Saburo Yagiuda 柳生田三郎
St. Nick Pursuit Unit · Japanese voice: Hiroaki Hirata
Saburo Yagiuda leads the special task force set up to capture Santa, known in English as the St. Nick Pursuit Unit. Experienced and persistent, he is the team's top agent, and the unit wants Santa's power for itself. His pursuit turns every one of Sanda's transformations into a risk. Japanese voice: Hiroaki Hirata.