help for podcast guests

[handya]

I currently do a podcast about atheism, religion, science and general non-believing, but as I am not a scientist or biologist, I do not have all of the knowledge or answers. So my purpose of starting this discussion is to find people that would be interested coming onto the podcast to discus such issues, preferably a scientist or biologist, even someone that is just very knowledgeable in the area. Any suggestions would be greatly appreciated.