Mitsuo Mitsuoda

Mitch Mitchum is a character of the day who appeared in Rough, Tough Jigglypuff. He lives with his wife Rikako and daughter Lisa in a small Kanto town.

A former executive of Pokéblock Unlimited, Mitch took time off from his job in order to look for a birthday present for his daughter, Lisa. However, the present she wanted was a Jigglypuff. Determined to make her wish come true, Mitch went into the woods and tried to capture the same Jigglypuff for months on end. No matter how hard he tried, he was unable to capture the Pokémon.

When Ash and his friends came across Mitch, Max devised a plan to trap Jigglypuff in a cabin and force it to Sing to Pikachu. This succeeded, and because the walls had metal on them, the voice reflected off and lulled Jigglypuff to sleep instead. However, Mitch decided not to capture the Jigglypuff, feeling it wasn't right.

When he returned home the next day, he was shocked to see that Jigglypuff had followed him. It was angry at him for leaving, and it wanted to continue playing with him. Lisa, excited at seeing a Jigglypuff, was proud of her father, who was happy that he had made his daughter's birthday a happy one.

(Source: Bulbapedia)