Denryu Train Conductor

The Ampharos Train crew is made up of a conductor, an engineer, and an Ampharos. They were day characters who appeared in Frozen on Their Tracks!.
They manage a train powered exclusively by an Ampharos, which travels from Snowpoint City to Lake Acuity. Their responsibilities include conducting the train, communicating with the command center, alerting passengers during emergencies, and inspecting the train. When the train's power runs low, the engineer orders Ampharos to use Thunderbolt to recharge it.
Midway through the episode, they spotted a signal set to danger and halted the train. Looker and the engineer went to investigate it, while the rest of the group waited outside the train, eating the lunchboxes Looker had given them. Then, Team Rocket arrived with a suction machine, sucking in all of Ash, Dawn, and Brock's Pokémon, as well as Ampharos. Everyone except for Ash's Pikachu, Dawn's Piplup, Brock's Happiny, and Ampharos managed to escape when Team Rocket's balloon crashed. They were eventually reunited with their Trainers and continued on their way to Lake Acuity.