NSW is in Australia

I forgot that Liverpool were going to win. Ask me how.

It's a fascinating question. People who build actual people into their characters may give some of the most alive depictions of people. Probably friend portrayals are more realistic than enemies. So one of the Harveys as malvolio may be more a caricature.

Much appreciated, this was very insightful.
Shame she didn't touch upon Feste's character being based on Thomas Nashe, I'm always interested in views on that question.