We've all seen great actors and actresses who are missing a certain chemistry. And it's not about getting along or not getting along.

There is that stereotype of a nerd with the high pants and pocket protector and that kind of thing. That can sustain comedy for maybe a movie - hence the 'Revenge of the Nerds' franchise - but not for hopefully years on the air. It's a sight gag, not a story.

People are complicated; you put two of them together and it's generally a mess, but hopefully a beautiful mess.

It's never been a priority for me to concentrate on the likability of the character.

I haven't really addressed those rumors because why defend yourself against something that isn't offensive?

Perhaps 'Big Bang' fans feel so protective of the show because it is, despite being a hit show on a big network, something of a word-of-mouth phenomenon.

I'm not at all competitive. I'd rather play Solitaire than ping-pong.