Liam Borrinea is a female officer who serves as the executive officer, or second-in-command, of the Earth Federation Forces Londo Bell unit's assault landing ship, the Nahel Argama, during the events of Mobile Suit Gundam Unicorn. She holds the rank of Commander, equivalent to a lieutenant colonel, and is forty years old. Her background is that of a career military officer stationed aboard a frontline vessel. In terms of personality, Liam is portrayed as professional, sharp-tongued, and deeply loyal to the chain of command. She operates within the rigid structure of Federation military doctrine and is known for her accurate situational analysis and sound judgment. Initially, like many of the crew, she regards her superior officer, Captain Otto Mitas, as unreliable and uncertain. However, over the course of the story, she gradually comes to trust his leadership and works alongside him to manage the ship through the escalating conflict surrounding Laplace's Box. Her motivations are rooted in duty and a desire to see the mission through, and she often demonstrates a pragmatic, no-nonsense approach to command. Her role in the story is primarily as a stabilizing presence on the Nahel Argama, executing orders and ensuring the vessel operates smoothly during combat and crisis situations. While she does not pilot a mobile suit, her notable abilities include sharp tactical awareness, effective decision-making under pressure, and the capacity to earn the confidence of the crew, often wielding practical influence that matches or exceeds that of the captain. Her development lies in her shifting perception of Captain Mitas, evolving from skepticism to professional respect and cooperation, which reinforces the crew's cohesion. Liam Borrinea is a key supporting character who embodies the competent, career-minded officer trying to navigate the chaos of the Universal Century.