Eduardo "Dudu" Arquero, originally Edward Archer and also called Eddie, stands as one of the central human characters throughout the Yo-kai Watch franchise. He attends Springdale Elementary School and lives in Springdale, sharing a close friendship with protagonist Nate Adams as part of their friend group alongside Bear Bernstein and Katie Forester. Physically, Eduardo appears shorter than Nate and Bear, characterized by unkempt brown hair, high-placed eyebrows, and "sleepy" eyes. His signature outfit includes a green jacket with two orange patches on the sleeves, a white collared shirt over a blue undershirt, rolled-up capris, and blue shoes with white rims. He almost always wears orange headphones matching his jacket patches. Eduardo displays a relaxed yet not entirely reserved personality. He remains generally friendly toward Nate and others, though Katie has suggested he may privately feel superior to his peers. Despite this, he demonstrates genuine concern, becoming visibly upset when Bear is inspirited by a yo-kai and acts like a bully. Academically stronger than Nate or Bear, he possesses a keen interest in technology, often showcasing gadgets like his specialized Mega Watch. He typically maintains a neutral or slightly awkward smile but internalizes frustration when irritated. A recurring trait is his skepticism toward the supernatural; he prefers scientific explanations for unusual events, though occasional yo-kai encounters challenge this worldview. Eduardo also exhibits a noted interest in romantic pursuits, including hinted crushes on Katie and classmate Shelly. His affluent family background sees him residing in a large house in an upper-class neighborhood, but his parents are frequently absent due to work. This absence leads to feelings of neglect, highlighted during birthday celebrations where he misses their presence. In one storyline, the yo-kai Sandmeh helps him confront this loneliness, resulting in his parents returning home. Across media, Eduardo plays supporting roles in key narratives: - In the anime, he features in episodes like "Yo-kai Sandmeh," exploring his emotional vulnerability regarding his family, and "The Extreme Dare," where he dismisses supernatural events as technical malfunctions. - In the games, he appears prominently in quests such as "Eddie's Search," investigating possessed samurai armor at the Gourd Pond Museum, and "High-Tech Hide and Seek," where the yo-kai Yoink steals his Mega Watch. Quests like "Time and Toys" and "Who's That Girl" highlight his tech hobbies and romantic interests. In *Yo-kai Watch 3*, he assists Hailey Anne Thomas's detective agency and joins a team to upgrade Robonyan into Ultimate Robonyan. - In the films, he briefly appears in the first movie discussing strange events and in the third film bargaining with Bear over a collectible toy figure. Eduardo's abilities center on technological proficiency. He demonstrates skill in disabling security systems, as seen when he tampered with and shut down a museum's alarms, and uses specialized devices for tracking and problem-solving. His relationships are most defined with Nate, whom he advises and teases affectionately. His dynamic with Bear remains ambiguous despite frequent interactions. Connections with Katie and his parents are less explored, though he shares a cordial relationship with his parents.