Harry Ord serves as the captain of the Royal Guard for Queen Dianna Soreil, a position he holds with the rank of First Lieutenant before being promoted to Captain. He is a young man of eighteen years who hails from the Moon's lower class, and his past includes the tragedy of losing his parents to the freezing of the liver, a fate that could befall commoners. He is easily recognized by his distinctive red sunglasses that completely cover his eyes, a feature that, along with his position as an ace pilot, invites comparisons to archetypal masked characters, though his role and personality take a very different turn.

In personality, Harry is defined by a cool-headed and calm demeanor, consistently displaying the tactical acumen and intellectual judgment expected of a military strategist. He is deeply devoted to Queen Dianna, having sworn absolute loyalty to her, and this devotion is his primary motivation. His actions are always filtered through the lens of protecting her and serving her will. However, his character is not cold or ruthless by nature. He possesses a warm and straightforward side, revealed in his honest appreciation for simple things, such as his early exclamation that the Earth's rain feels warm. This combination of professional severity and personal sincerity makes him a unique figure among his archetype.

Throughout the story, Harry operates as the commander of the Dianna Counter's military forces, often piloting his personal gold-colored SUMO mobile suit. His role is that of a powerful and honorable defender rather than a rival to the protagonist, Loran Cehack. While he confronts Loran when the young pilot’s actions overstep certain bounds, he never views him as a true enemy. Instead, he develops a degree of respect for Loran and his ideals as the narrative progresses, acknowledging him as a worthy counterpart.

A crucial element of Harry's role is his relationship with the two women who share the same face. He is the only person capable of distinguishing between Queen Dianna Soreil and Kihel Heim after the two switch places. This ability is not based on physical appearance but on a deeply perceptive recognition of the different kinds of sadness they each carry; Dianna bears the weight of a people's fate, while Kihel struggles with the constraints of her life. Despite his loyalty to Dianna, Harry develops a complex connection with Kihel as he protects her while she poses as the Queen, and he eventually comes to love her, all while never shirking his duty to the throne.

His character shows development in his shifting loyalties and understanding. While his devotion to Dianna is absolute, his bond with Kihel deepens, forcing him to navigate a situation where his heart and his duty are pulled in different directions. He remains a protector to both women, ultimately serving the ideals they both come to represent. In the final stages of the conflict, his formidable combat skills are on full display, proving himself to be arguably the strongest pilot in the series, whether fighting hand-to-hand or inside a mobile suit.

Harry possesses several notable abilities. He is an exceptional mobile suit pilot, capable of taking on multiple enemy units simultaneously and handing Loran his first defeat. Beyond his combat prowess, he is a sharp tactician and an intellectual. He also has some unusual personal quirks, such as a habit of tugging at his collar because he believes it makes him look like a dandy and a unique fashion sense that includes boldly patterned suits and star-printed purple pajamas. His battle cry of Universe is a defining vocal trait, and he is known for using inventive methods, such as passing medicine mouth-to-mouth, to achieve his objectives.