Yoshioka Gonzaemon is a character from the anime Inspector Fabre, where he serves as the self-proclaimed assistant to the primary detective, Inspector Fabre. His background is that he is of Asian origin, and he first appears at the scene of a world festival, which is where he encounters Inspector Fabre. Upon meeting the detective, Gonzaemon develops a profound sense of admiration for him, a feeling that becomes the central driving force behind his actions.

In terms of personality, Gonzaemon is marked by an unwavering and deep-seated loyalty. This devotion is not merely passive; it is an active and defining trait that compels him to provide life-threatening support for Fabre's investigations. His motivations are intrinsically linked to his veneration for the inspector rather than stemming from any personal ambition or independent goal. His entire narrative role is structured around offering steadfast investigative assistance to the protagonist, solidifying his position within Fabre's team.

Within the story, Gonzaemon's function is to aid in the practical aspects of detective work. He helps with crime analysis and assists in physically confronting opponents. His key relationship is, by far, his connection with Inspector Fabre, which is built on a foundation of deep respect and a desire to be useful. Information on his personal development or changes over the course of the series is minimal, though his background prior to joining Fabre is noted to be limited to his Asian heritage and his presence at the festival. His notable abilities, as demonstrated in his role, include providing critical support during dangerous situations and contributing to the analytical and confrontational elements of solving cases.