Butch (Kosabaro in Japanses) and Cassidy (Yamato in Japanese) are the other Team Rocket couple. We hear a lot less about them (they appeared only in 3 episodes until now) and we don't know much about them. They are probably a bit older than Jessie and James, something about 20 years old, and they are apparently on the boss' good side (they claimed that the boss came to bail them out of jail himself). Eventhough- they are mostly captured by the police and get thrown in jail, while Jessie and James had never been cought.
They are a bit meaner than Jessie and James and their plans to date were a bit more complicated and meaner.
Cassidy used to be Jessie's best friend, but they used to fight a lot about who' prettier and who's team is stronger, and know they are looking on ways to nail each other.
Butch is known as the "frogman" because of his creacky voice.
Butch and Cassidy have two Pokemon: Ratata and Drowzee. They share the Pokemon and don't seem to argue much about who's telling the Pokemon what to do. They apparently don't have a specific Pokemon for each.
Neoshippers : People who believe that there's something romantic between them. They prove it by pointing out the fact that they share Pokemon and don't argue and get selfish about it (can you imagine what would have happend if Jessie and James had to share a Pokemon?), and also they seem to respect each other and they don't argue and beat or insult eachother. Plus, there is always the theory that the boss put members who are romantically involved as team couple.
