"When it was offered [a role in The Flash] I just thought it sounded like the perfect thing that I would want to do. Then they announced it online the day after and I was terrified, because I hadn't read anything, I hadn't shot anything. What if I'm awful? What if they fire me on the first day? But what I discovered was a bunch of really happy actors who want to make the best show possible, because it's fun. Not for any other reason."

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The fact is that you can be a Nazi living in a little trailer in the middle of Montana and as awful as everything you stand for is, you're basically an angry guy in a shack. Scientology, on the other hand, is a multi-billion dollar institution with tentacles that reach into lots of countries. I don't think it's as powerful as many people think it is, but compared to the sorts of people I've dealt with, it is a force to be reckoned with. It has global influence and very very deep pockets.

— Louis Theroux