From Bulbapedia, the community-driven Pokémon encyclopedia.
Icy Guy is a type of Trainer that first debuted in Generation IV. They are the male counterparts to the Cool Beauty Trainer class. So far, they have only appeared in Pokémon Battle Revolution. They use Ice-type Pokémon.
This type of Trainer can be utilized as a custom character if a Cool Boy on the Battle Pass has at least 3 Ice-type Pokémon.