As I did with Tetch I'll just be doing people he's normally associated with!
Edward Nygma: Friends
They don't hate eachother they can just get a bit tense at times. They both have similar taste in Music and clothing, but they're egos do clash at times. In Arkham they're usually grouped together in the whole "dork squad" so talkings only natural. (Especially when you have to choose between trying to talk to a stick bug and a short fantasy man)
Jonathan Crane: Introvert vs Extrovert
Jonathan will happily let Meister do whatever he wants but pull Jon in and oh boy. Jonathan is not Meisters show partner and Meister of course See's Jon as a complete bore.
Mary Dahl: We gotta do THE song
Sometimes they get along very well and it's fun to see/hear them preform together other times.... Divas man plan divas. Meister thinks Mary's adorable and had a great attitude and Mary thinks he's the perfect showman.
Clayface: the ___ were better
Classic movie watcher buddies, it may have taken Meister a while to watch Clayfaces movie, but hey it's smooth sailing (so far). Meister doesn't really care about Clayfaces appearance and doesn't mind it at all when he copy's him.
Batman: No singing
Batman always wears earplugs when fighting Meister. He's no fun.