Don George is a supporting character who appears throughout the Pokémon: Black and White series, known for serving as the manager of the various Battle Clubs located across the Unova region. He shares a unique familial structure similar to Nurse Joy and Officer Jenny, meaning there are many identical relatives who all go by the name Don George, each running a different Battle Club in towns and cities throughout Unova. This often leads to confusion for travelers like Ash Ketchum, who initially believes he has met the same person again before learning that he is part of an extensive, identical family of club managers. The individual Don Georges can be distinguished by the colors of their suits, specifically the collar, belt, and cuffs, which vary from one location to another.

In terms of personality, Don George is characterized by his enthusiastic and booming presence. He is deeply passionate about Pokémon battling and dedicated to maintaining a fair and exciting environment within his club. While many of the Don George relatives tend to have a direct and somewhat rough demeanor, some individual versions have shown a more sensitive side, even being moved to tears on occasion. His primary motivation is to foster strong bonds between Trainers and their Pokémon and to witness powerful, spirited battles. He takes his role seriously, aiming to provide a space where Trainers can test their skills and grow stronger.

As the club manager, Don George's main role in the story is that of an operator, referee, and sometimes a mentor. He is often seen officiating the battles that take place in his club, ensuring the rules are followed and announcing the competitors with great fanfare. He has a habit of giving Trainers and their Pokémon dramatic, often exaggerated nicknames during his announcements, such as calling a Trainer a rampaging locomotive of muscles or a Pokémon a scorching skyscraper. Beyond serving as a referee, he has also taken on the role of a coach. In one notable instance, a Don George helped Ash train for his rematch against the Nacrene City Gym Leader Lenora, assisting Ash's Oshawott and Tepig in learning the powerful new moves Aqua Jet and Flame Charge, respectively. Furthermore, he is the organizer and host of major tournaments in the series, including the Club Battle tournament in Nimbasa City and the Clubsplosion tournament in Ambrette Town, often co-hosting these events with a man named Freddy O'Martian.

Throughout the series, Don George maintains key relationships with the main characters, primarily Ash and his friends Iris and Cilan. He serves as a helpful and reliable ally, providing them with a place to train and battle. He also interacts with Ash's primary rival, Trip, and other recurring competitors like Bianca, Stephan, and Burgundy during the tournaments he organizes. While the individual Don Georges are largely static characters without significant personal development across the series, their collective function provides a consistent and supportive network for Trainers across Unova. The expansive family of identical brothers also represents a continuation of the franchise's tradition of using recurring, uniform character designs to populate its world.

Don George does not possess any supernatural abilities, but he has notable practical skills. He is an expert in his role as a battle referee and event organizer, capable of managing large-scale tournaments. He also demonstrates a keen insight into Pokémon training, as shown when he successfully designed a training regimen that helped Ash's Pokémon learn new attacks in a short period. His most distinctive ability is his powerful, charismatic announcing voice and his talent for crafting memorable, and often humorous, introductions for the competing Trainers and their Pokémon.