Dorel Ronah is a character from the anime Mobile Suit Gundam F91. He is an officer in the Crossbone Vanguard, a military organization led by his family, the Ronahs, which seeks to establish an aristocratic regime known as Cosmo Babylonia in the space colonies. Dorel holds the rank of a mobile suit squadron commander, a position he attained through his demonstrated courage and piloting abilities rather than solely by bloodline. Despite his rank and responsibilities, he is described as brash and highly competitive. This intense desire to prove himself often manifests as recklessness in battle, where his rivalry with Zabine Chareux, the commander of the elite Black Vanguard squadron, pushes him to take significant risks. As a combat pilot, Dorel is noted for his skills, relying on precision marksmanship and disciplined formations. He is familiar with commanding elite units like the Den'an Gei and coordinates combined-arms assaults that maximize the mobility of his forces.

In terms of background, Dorel is the son of Carozzo Ronah and the half-brother of Berah Ronah, who is also known as Cecily Fairchild. He is not directly blood-related to the Ronah patriarch Meitzer Ronah; rather, he and his father were adopted into the family following Carozzo's marriage into it. This position as an adopted heir within a powerful noble family likely contributes to his drive to prove his worth on the battlefield. His relationship with his half-sister Berah is an important aspect of his character. He shows a genuine affection for her, yet he also has her kept under guard, as he sees her as a key to legitimizing the Cosmo Babylonia project while fearing her sympathies for the Federation and refugees. This personal conflict highlights how his devotion to the family's political ideology often overrides personal bonds. Within the Crossbone Vanguard, Dorel cultivates loyalty among his subordinates by rewarding competence and enforcing strict discipline, expecting both his family and his knights to serve the Ronah vision without question.

Dorel's role in the story is that of a supporting antagonist and a primary field commander for the Crossbone Vanguard's initial assault to seize control of the Frontier colonies. He is depicted as an heir apparent working to satisfy the expectations of the family patriarch, Meitzer Ronah, though tensions arise between the political calculations of the court and the realities faced by frontline commanders like himself. His fate is a point of ambiguity. The anime suggests his disappearance following the collapse of the Cosmo Babylonia and the defeat of the Crossbone Vanguard, with some sources indicating the character was killed in battle against Seabook Arno's Gundam F91, while others state his ultimate fate remains unknown. When the artist of a sequel manga inquired about Dorel's fate, the series creator reportedly advised him to simply forget about the character, leaving his ultimate destiny ambiguous.