Experiment 625's journey is intricately woven into the fabric of the Lilo & Stitch saga, evolving from a mere sidekick to a pivotal character. This direct-to-video film serves as the backdoor pilot for Lilo & Stitch: The Series. Here, Experiment 625 is introduced as a dehydrated pod that Gantu discovers and activates. His initial purpose, as envisioned by Hämsterviel, was to torture Jumba. However, his immediate display of laziness and prioritizing sandwich-making over villainy quickly established his unique character. This film sets the stage for his recurring role as Gantu's unwilling associate in the subsequent series. Throughout the 65 episodes of Lilo & Stitch: The Series, Experiment 625 is a prominent fixture, constantly accompanying Gantu in his futile attempts to capture Jumba's other 623 experiments. He serves as Gantu's sarcastic foil, providing comedic relief and often subtly undermining his efforts. His dialogue is replete with witty remarks, sandwich recipes, and observations that highlight Gantu's ineptitude. While largely inactive in terms of using his powers for destructive purposes, there are rare instances where he demonstrates his true abilities, such as kicking Gantu across a beach or plunging into the ocean, proving his physical capabilities are indeed on par with Stitch's. Fans often theorize that his apparent incompetence was a deliberate act of sabotage, a clever way to impede Hämsterviel's plans without directly confronting Gantu. He's portrayed as intelligent and empathetic towards his fellow experiments, recognizing that Jumba's creations are better off with Lilo and Stitch than with Hämsterviel. This nuanced portrayal adds significant depth to a character who could have easily been a one-note gag. This television film serves as the grand finale to Lilo & Stitch: The Series, concluding the main continuity where Lilo Pelekai is a central character. It is in Leroy & Stitch that Experiment 625 truly shines and receives his official name: Reuben. At the beginning of the movie, Gantu abandons Experiment 625, leading 625 to convert Gantu's ship into his own sandwich shop. Lilo, needing to contact Stitch, visits the ship and, upon finding the communication system broken and seeing 625 emotionally hurt, consoles him and offers him a peanut butter and jelly sandwich. It's in this touching moment that Lilo gives him the name "Reuben," a name he genuinely appreciates. This act of kindness is a turning point for Reuben, as it inspires him to finally embrace the spirit of 'ohana and use his considerable talents for good. He repairs Gantu's ship's communication system, allowing Lilo to discover the threat of Leroy, Hämsterviel's new, more powerful experiment. Reuben plays a pivotal role in the climax, using his surprising agility and intelligence to help Lilo, Stitch, and the other experiments defeat the army of Leroy clones. He famously slips up the attacking Leroys with sandwiches, showcasing his unique approach to problem-solving. After the galactic conflict is resolved, Reuben is hired as Gantu's galley officer, a fitting "one true place" that combines his culinary passion with a legitimate role within the Galactic Alliance. This movie solidified his redemption arc and elevated him from a mere sidekick to a beloved and integral member of the 'ohana. In the Japanese anime series Stitch!, which takes place years after the events of Leroy & Stitch and features a new human companion for Stitch named Yuna, Reuben reappears. While his English voice actor changes (to Dave Wittenberg from Rob Paulsen), his core personality largely remains, although some fans feel his redemption arc from the previous Western productions was somewhat undone. He is shown to be fired from the Galactic Alliance alongside Gantu and continues his sandwich-making habits. In this series, he sometimes visits Stitch and is not always an adversary, showing a continued friendship despite his alliance with Gantu.