If you haven’t already done so, you should really check out the Rise Productions Podcast. Aonghus Óg McAnally started doing them last November and they are basically hour long chats with theatre people from around Ireland. There’s actors, writers, directors, theatre critics, designers; basically theatre makers of every sort. The format is pretty informal but Aonghus is good at getting people to tell stories.
I’ve used a couple of them as research for my last couple of MA essays and they are great for that. They are easy to listen to and a great way to learn about the different routes people on their way to being very successful in their field.