Count Pump's Steward

Count Pumpka's steward is a character of the day who appeared in A Festival Trade! A Festival Farewell?.

The steward was sent after Team Rocket by Count Pumpka, as the count had interest in obtaining Jessie's Pumpkaboo. He invited them to Count Pumpka's castle for a meal. The steward was later sent after Ash and his friends, as Team Rocket tricked the count into believing that Ash's Pikachu had threatened Pumpkaboo. He briefly battled the group to try to take away Pikachu, and then escaped with Clemont's Chespin, who was dressed up as a Pikachu and was taken instead by accident.

Later, Ash and his friends stormed Count Pumpka's castle to reclaim Chespin, and revealed that Chespin was actually the Pokémon that the steward had taken with him. Still thinking they were bad people, the steward had his Gourgeist attack them again. This time, they were quickly defeated by the group's Pokémon. Following this, the steward pushed a secret switch in a nearby wall that caused a cage to appear and trap Ash and his friends. They ultimately managed to escape, however, and revealed Team Rocket were the real bad guys. After they managed to blast Team Rocket off, Count Pumpka and his steward apologized to them for the misunderstanding and for mistreating them. As the count invited them for dinner, the steward served them.

(Source: Bulbapedia)