Ewan McGregor - Depth in every way... including traveling by motorcycle, boat, plane and foot to deliver vaccines to children in remote parts of India, Nepal and the Republic of Congo. "I have to say I am an optimist. I've always been built that way. I'm quite a happy person. I can find joy in lots of things. I just am happy. I don't have to look for it. I don't have to do things to encourage my sense of optimism. I have it anyway."