Starlock Polmes
Starlock Polmes is the identity of a detective that assumedly looks much like Starfy, as characters across different games mistake him for this genius detective. He is analogous to Sherlock Holmes, a famous literary detective, and could be of similar fame in Starfy. However, it is safe to assume that because characters like Funazou and Rabiarty mistake Starfy for him, that he is an actual figure in their world.
In Densetsu no Starfy 2
This is the first mention of Starlock Polmes. Funazou mistakes Starfy for Starlock, calling him スターロック先生/Starokku-sensei, or “Detective Starlock”, and calling Moe his sidekick “Moeston” (キョトスン/Kyotsun, analogous to Sherlock’s friend, Watson) to his initial chagrin.
He asks the two to solve the mystery of Ressie’s disappearance. Starfy eventually finds a bruised Ressie, who then asks him to find his kidnapped daughter (later revealed to be Savako).
In Densetsu no Starfy 3
While not as a major role, Funazou returns in Starfy 3 and still refers to Starfy as “Detective Starlock” and Moe as “Moeston”, and gives them some Jungle Manjuu.
In Densetsu no Starfy 4
While Starfy, Starly, Moe, and Mattel venture through Millennium Mountain, Rabiarty appears and refers to Starfy as スタロックくん/Starlock-kun and kidnaps Mattel. Somewhat interestingly, he does not acknowledge Moe as Moeston, despite his potentially real counterpart being famous.