Eduardo Arquero, also known as Edward Archer or Eddie, answers to Imada Kanchi in Japanese, Matt in French, and Pier in Italian. An 11-year-old classmate and close friend of Nate Adams at Springdale Elementary, he resides in a large house within a high-class neighborhood. His parents' demanding work schedules frequently leave him alone, leading to events like missed birthday celebrations.
Eddie typically wears a green jacket featuring orange patches on the sleeves, a white collared shirt over a light blue undershirt, and rolled-up capris or jeans, paired with plain blue shoes boasting white rims. He almost always sports orange headphones matching his jacket patches. Physically, he has "sleepy" eyes, high-placed eyebrows, unkempt brown hair, and stands shorter than Nate or Bear.
His personality is relaxed and easygoing, maintaining a friendly demeanor toward Nate and others, though he occasionally displays subtle showiness regarding his technological gadgets or academic strength—Katie notes he may privately consider himself superior. Academically stronger than Nate or Bear, Eddie exhibits a keen interest in technology, actively researching topics on his mobile phone. He remains skeptical of supernatural explanations, attributing odd occurrences to scientific causes. While he experiences mild irritation, he typically internalizes frustration.
Across the *Yo-kai Watch* games, Eddie participates in key quests. In the first game, he investigates possessed samurai armor rumors at the Gourd Pond Museum and reports paranormal home activity later revealed as Yo-kai like Wantston and Hungorge. *Yo-kai Watch 2* features his "High-Tech Hide And Seek" chapter, tracking his stolen Mega Watch with Nate and encountering Yo-kai like Yoink and Swelton. His questline involves assisting Bear's hero roleplay through Supoor Hero's inspirit, which backfires due to Eddie's wealth, and pursuing romantic interests involving Shelly, requiring interventions from Rattelle and Jumbelina for makeovers. In *Yo-kai Watch 3*, he collaborates with tech enthusiasts to upgrade Robonyan, and his mother replaces his broken robot model.
In the anime's Season 1 episode "Yo-kai Sandmeh," Eddie is inspirited during his birthday party, revealing suppressed sadness over his parents' absence; this resolves when they return home. The first film shows him discussing Springdale's strange occurrences with friends while denying belief in Yo-kai after Nate's teasing. The second film features a non-speaking cameo where Hailey and Usapyon trigger his home's burglar alarm. The third film depicts him bargaining with Bear over a rare toy figure, leveraging their friendship for a discount.
Eddie shares a notably friendly rapport with Nate, offering advice while occasionally teasing him. His dynamic with Bear is less defined, though they socialize regularly. Interactions with Katie are minimal, though she observes his potential sense of superiority. He expresses romantic interest in Shelly during one questline.
Trivia notes indicate he ranks third in susceptibility to Yo-kai inspiritment within his friend group. His zodiac sign is possibly Scorpio.