Nope, he wasn't Zachary Smith.
However, I revealed to Ed something that I thought when I was very small. In watching "Lost in Space" with my siblings, then later watching "Mr. Rogers Neighborhood," I was confused. See if you might understand.
This is Lady Elaine Fairchilde:
And this is Doctor Zachary Smith:
Do you have any question why a preschooler might wonder how the guy was a puppet on one show and a real person on another?
You probably now have questions on whether I really am up for the challenge of a doctoral program, don't you!