Everett is a character of the day who appeared in A League of His Own!.

Everett saw Ash on television being interviewed by Malva at the Lumiose Conference and planned on challenging him to a battle. He found Ash and asked him for a battle. Ash accepted, but Serena and Clemont stopped the battle before it could start, as Ash could end up missing the registration deadline as a result.

(Source: Bulbapedia)