Shirou

Benji is a character of the day who appeared in Mountain Time (EP174).

Benji and his father are part of the Mountain Patrol, using Ledian to help them do their job. To help train these Ledian, Benji's father has a Pidgeotto to simulate the strong winds that occur in the mountains.

Benji took Ash and his friends out to the woods to show them how he trained his Ledian. Suddenly, an unusual wind whipped up and Benji's Ledian was blown away. They soon realized the wind was being caused by a vacuum machine used by Team Rocket. The same machine was used to suck up Pikachu and Togepi. Benji ordered Ledian to go after Team Rocket, but the machine's wind was too strong for it. Soon, a real wind blew Team Rocket's balloon away and they crashed into the mountains.

Benji and Ledian helped the group navigate the mountains and recover their stolen Pokémon. They later found Team Rocket teetering on a rock on a tip of a mountain. Benji pulled out a rope and net from his bag, and with Ledian's assistance, they rigged up a zip-line to rescue Team Rocket, Pikachu, and Togepi. A rock dragged down the rope, but Ledian managed to harness all of its strength to get everyone onto the ground safely.

Team Rocket then tried to run off with Pikachu and Togepi, but they were stopped by Benji's father. Benji and his father then teamed up and used both of their Ledian to save Pikachu and Togepi. Afterwards, night fell and the first stars began to appear in the sky, causing Benji's Ledian's spots on its back to glow. Benji's father then promoted his son to "Officer of the Mountain Patrol" for his brave actions.

(Source: Bulbapedia)