Dareo Dokono, known as Gabby in English, serves as Professor Yamatone's assistant. He exhibits a comedic and dim-witted personality, providing light-hearted moments throughout the narrative.

His primary role involves aiding Professor Yamatone, Takeru Yamatone, and Mary Mire in their scientific work and confrontations against antagonists like Dr. Nazo. He consistently operates in a supporting capacity, maintaining a static presence across all 52 episodes. He contributes to team dynamics through humor and occasional clumsiness.

No exploration of his origins, personal history, motivations, or substantive character development occurs within the series, official films, OVAs, or referenced ancillary media. His presence remains exclusively within the core storyline, functioning solely as comic relief without engaging in secondary plots or deviating from this archetype.