Henry Henderson

Henry Henderson is a recurring character in the Spy x Family anime, serving as a history teacher at the prestigious Eden Academy. He also acts as the housemaster of Dormitory 3 (Cecile Hall) and becomes the homeroom teacher for Anya Forger's class.

He is an older, dignified gentleman with a distinctive aristocratic appearance: long white hair tied back in a ponytail, a prominent Imperial-style beard and mustache (with long pointed ends), small thin eyes, facial wrinkles reflecting his age, and he typically wears formal attire including a monocle and often carries a walking stick. His look emphasizes old-world nobility and refinement.

Personality-wise, Henderson is deeply committed to the concept of "elegance" (he frequently exclaims "How elegant!" or variations like "How elegant of me!"), which he views as proper conduct, dignity, manners, and graceful behavior in all situations. He is strict yet fair, noble, mature, and principled—he assesses students (and even adults) based on their elegance, corrects inelegant actions without hesitation, and believes in educating the young to foster honorable character and prevent conflict. Despite his theatrical flair and obsession with etiquette, he shows genuine care for his students, going out of his way to protect or support them when needed, even at personal cost (such as getting demoted after defending the Forgers during an incident).

In the anime, he first appears prominently during the admissions interview process and continues to interact with Anya and her classmates in school and dormitory settings, often providing comic relief through his dramatic reactions while remaining a respected and protective figure.