Must be an imbecile in real life:-(
Being not just a scientologyst (which already qualifies you as a dim person) but one of the top chiefs of the cult. That must take a very misguided and weak individual, and judging by the facts we know about his private life, that's the case here.
So you have a very popular actor, who's also very rich because of his popularity, that could go on living a great, decent and healthy life but instead prefers to be a crucial part of this abusive cult.
I am a fan of his professional work, he's a fine actor and he used to have the best instinct for picking roles. I don't want to bash him for being an idiot, it's not his fault afterall, but I confess I wish he was at least a normally intelligent person in real life.