What characters have shared team members?

So in this thread we will be looking at the many characters in the Pokemon world and their adorable/ funny/ fierce companions. To play this thread, someone (that being me) will pick a character from the games (or anime/manga if you so desire). The next player will call out a character who they share a party member with. Repeat until the thread dies. Still don't understand?

Anyway I shall begin this thread with my boy... BARRY