Is this the 500th time I'm explaining this role? My role blocks night actions and it also protects against bad effects. This includes night kills and probably cult recruitment. The role didn't specify these bad effects, but the fact that it's worded like that (though not exactly because I had to paraphrase) leads me to believe that. Whether the doctor part of me can do that or not it doesn't matter because as a roleblocker also I could roleblock a Cult Leader most likely.