Shigeo

Shigeo is a character of the day who appeared in Those Darn Electabuzz!. He is the father of Corey and Benny Demario.

Casey met him at the ranch, learning about Corey's shoulder injury from him. Even though it healed not too long ago, Corey decided not to play baseball anymore since he had lost his confidence in it. Shigeo believed that Casey would help Corey and his Charizard, Don, in regaining their confidence again. As Don was given an opportunity to battle, Shigeo showed up and volunteered to battle the Charizard. During the battle, as Don could not use any attacks or fly, Shigeo was able to defeat Don and he commented that Casey did a good job with coaching Don.

(Source: Bulbapedia)