Akira Toriyama

Akira Toriyama is the creator of the Dragon Ball series who has an in-universe counterpart personified by a short robot that wears a hat that says Tori on it.

Background
He created the entire Dragon Ball series and was the initial employer of Cell until the Cell Games arc ended in Dragon Ball Z. In How Perfect Cell Met Kermit, He is seen in his office telling Cell that the studio can't do anything else for him other than appearing in video games and in the Dragon Ball Heroes franchise but promises that the Cell Games Arena has a lifetime warranty.

In Perfect Cell Vs Rycon (Ft.UnrealEntGaming), Rycon uses a time machine to see Toriyama in the past to give him a DVD of Dragonball Evolution presumably to inspire the Toriyama of the past to make that instead of the canon Dragon Ball universe that everyone loves.