TV-Series
Description
Joel is a character who appears in the final season of the Dr. Stone anime, Dr. Stone: Science Future, specifically making his debut in the second cour of that season. He is introduced as a young man with a slim build, short wavy reddish-brown hair, and green eyes, often seen wearing a work apron and a jeweler's magnifying glass on his head, which underscores his profession.

Before the worldwide petrification event, Joel was a highly skilled craftsman who held the prestigious title of the top watchmaker for a renowned brand called Rodex, a clear reference to a famous real-world watch company. His deep understanding of intricate mechanisms and his steady hand for working with minuscule components earned him this honor at a relatively young age. This background makes him uniquely qualified for the task the Kingdom of Science requires: analyzing the complex, mysterious device known as the Medusa, which is the source of the petrification phenomenon.

Joel's personality is notably dual-faceted. When interacting with other men, he displays an arrogant and overbearing attitude, acting as though he is superior to everyone around him. This can be seen as a form of bravado or extreme self-confidence born from his mastery of his craft. However, his demeanor changes drastically when he is in the presence of women, becoming shy, timid, and noticeably insecure. His difficulty communicating with the opposite sex is suggested to stem from a lack of social interaction, having been so singularly focused on his work as a watchmaker that he has had very little opportunity to develop social skills in that area. Upon being revived from the stone, his first actions are to craft a wristwatch for himself, which he considers an indispensable accessory, and to begin examining the Medusa device with intense focus.

Joel enters the story when Senku and his team, needing to understand the Medusa's inner workings, seek out the most skilled watchmaker they can find. Following a lead from the CEO of Rodex, Joel is depetrified and brought into the fold. His primary role in the narrative is to apply his expert knowledge of mechanics to deconstruct the petrification device. With his keen eye and meticulous hands, he successfully identifies the device's power source, a tiny diamond that becomes depleted after use, marking a critical step toward unraveling its secrets. While he is a minor character, his expertise is portrayed as invaluable to the Kingdom of Science on their quest to uncover the truth behind humanity's石化. His key relationship is with the kingdom itself, as he becomes an essential ally whose specialized skills fill a gap in their collective knowledge. His notable ability is his unparalleled craftsmanship and mechanical insight, which he uses not only to build precise timepieces but also to analyze and potentially replicate advanced technology far beyond the current era's scientific level.