Sugio

Sergio is a minor character in the Pokémon anime who appeared in Numero Uno Articuno (AG135) and The Symbol Life (AG136). He is an assistant to Noland at the Battle Factory.

He is Noland's first apprentice, although he jokes around with the Frontier Brain whenever his inventions fail. One of Sergio's duties is caring for the on-site Pokémon. He also refereed the battle between Noland and Ash.

(Source: Bulbapedia)