Saguru Hakuba, a 17-year-old detective active across England and Japan with over 500 cases in Japan alone, stands 180 cm tall and weighs 65 kg. Born August 29th under the Virgo sign with blood type A, he has brown-blonde hair and eyes depicted blue in manga but brown in anime adaptations. His bicultural roots stem from a British mother and a Japanese father serving as Metropolitan Police chief, alongside a paternal uncle running a research lab. Primarily cared for by his governess "Baaya," he attended London Bridge High School before transferring to Ekoda High School's Class 2-B, sharing classes with Kaito Kuroba, Aoko Nakamori, Akako Koizumi, and Keiko Momoi. Hakuba's personality merges formal politeness—using humble pronouns like "boku"—with underlying arrogance. He meticulously times events to the millisecond with a pocket watch. Initially seen in Sherlock Holmes-inspired attire, he later favors suits. His flirtatious tendencies, like kissing Aoko's hand or vowing to solve cases for female detectives, sometimes aim to provoke rivals such as Kaito Kuroba or Heiji Hattori. Confidence bordering on hubris defines his relentless pursuit of Kaitou Kid. As a detective, he prioritizes understanding criminal motives, often asking "How come you did that?" His eidetic memory captures precise details and timings. Proficient in billiards and basic falconry, he owns a hawk named Watson acquired in England. While collaborating with law enforcement like Inspector Ginzo Nakamori, he displays condescension toward police methods. In Magic Kaito, Hakuba obsessively targets Kaitou Kid, suspecting classmate Kaito Kuroba as the thief. Despite their rivalry, he occasionally aids Kaito—such as sharing intel on gem thief Chat Noir—insisting only he can defeat him. The Magic Kaito 1412 anime shifts his focus to assassin Spider, using Kid as bait. Though he employs tactics like sleeping gas, Kid consistently outmaneuvers him. Detective Conan canon features Hakuba in the Twilight Palace case, introducing Watson, and the Detective Koshien case where he clashes with Heiji over regional accents. He periodically returns to England, noted during a Kid heist where the thief welcomes his absence. Non-canonically, he appears in The Private Eyes' Requiem film, later revealed as Kid in disguise. The Culprit Hanzawa spin-off casts him comically as a part-time coworker to protagonist Makoto Hanzawa. Watson briefly enters Hanzawa's care in one episode, integrating Hakuba into the gag narrative while retaining his core traits.