Kenzou

Dr. Kenzo first appeared in A Gruff Act to Follow!, where he saw Team Rocket gazing at some coal in the Oreburgh Mining Museum. He asked the trio what they wanted to see and they chose the Fossil restorer. While going to the Fossil restorer, Dr. Kenzo told them how the museum is split into two parts. As they arrived, Dr. Kenzo told them that the restoration process once the Fossil was in the machine would take 24 hours to complete.

In Wild in the Streets!, Dr. Kenzo discovered that the museum's Fossil-reviving machine was missing. He was then shown standing next to Officer Jenny, watching an Aerodactyl destroy part of Oreburgh City. As Roark battled an Armaldo and a Kabutops with Cranidos, Dr. Kenzo found out that Team Rocket were responsible for stealing the Fossil-reviving machine. After Aerodactyl damaged part of Team Rocket's mecha, Dr. Kenzo recalled both Armaldo and Kabutops to their Poké Balls. He was also able to capture Aerodactyl after Dawn's Piplup and Buneary battled it.

(Source: Bulbapedia)