I didn't have an imaginary childhood friend, but I did one day imagine somehow tiny green men, and they were only tiny and green because my brother had a ton of toy soldier toys that came on a skateboard plank type of thing, and I just envisioned in this car driving to church with my mom, they were there.

Realistically, there is a danger, of course, when you're going into someone's living room as the same guy every week. But I don't fear it because, I mean, there's really nothing I can do about it. I can try to combat it through the work, and maybe make sure I don't do Sheldon 2.0 in any other projects. But it's just really hard for me to find any negative side effects from this experience.

If I ever wrote a script myself, it would be strongly emotional material.

I try to master every facet of a character in order to build a safety net for myself, so I can go on to take more risks to create someone really distinct.

I had a very strong interest in music, specifically the piano from a very small age.

Playing Sheldon is just heaven for me. I realize how enormously lucky I am to play a role that makes me so incredibly happy. As I told Chuck Lorre in a Christmas card a few years ago, I'm living a version of the dream.

I've always loved TV very much, and as a child I was so religious with it, but now it's more when it fits in.