Gouba is a male alien distinguished by violet hair and green eyes. His physique resembles that of a well-fed hamster, suggesting a plump and comfortable build. He possesses a generally relaxed and easygoing disposition.

Operating as an information broker within the galaxy, Gouba scans the cosmos for the Earth children traversing space on their journey home. Upon locating them, he meticulously gathers details about their whereabouts. He monetizes this intelligence, selling it for profit, and also deals in various merchandise items related to the children or their expedition.

Despite his entrepreneurial focus on profiting from the children's location and experiences, Gouba is not malicious or purely exploitative. He exhibits a fundamentally friendly and courteous personality, forming a genuine connection and establishing a friendship with the Earth children during their travels.

A significant driving force behind his actions and interests is his status as a huge fan of the widely popular galactic entertainment program, the Space Show.

His interactions with the children form the extent of known background; concrete information regarding his origins, age, or significant character development remains undefined. Similarly, details about his role or appearances in other official media extensions like spin-offs, OVAs, or alternative seasons are unavailable within the provided sources.