He's also written two books about his time on "Lost in Space," co-authored by his former co-star and on-screen sister Angela Cartwright, and he's been a professional musician for many years.

I believe that the answers are inside you, but they get confused and lost among life's daily battles ... is to help you hear YOU. To clear space where that small voice that knows you better ...

The Sound of Music child star Angela Cartwright leads an entirely different ... roles included those in The Danny Thomas Show ...