I don't know much about Robert Stack unlike the other guy, but i can describe him some. I never watched Unsolved Mysteries when it was on the air, but now whenever I'm home from school, I'll tune in to watch it. Robert Stack is one of the scariest guys I've ever seen, plain and simple. He NEVER makes a full smile, and when he does smile, it's like a half-contorted/upper lip smile that also freaks me out. Even on something happy, like a lost relative finding their family or a lost child being found, he still rarely smiles! Even though this guy scares te holy hell out of me, I still think he is one of the best TV host of all time.
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