This was a pretty interesting thread. Thanks, guys, for all the info - and for debating it politely!
Speaking of voice pitch, what was up with Reger's voice in some scenes in "Return of the Archons"? It's way too high in the scene where 's escorting the landing party out of his rooming house and to a safe place. "They're in the body, it's Landru" and so on. Was that a bad dub or a different vocal actor altogether?