What are the names of the six models (actors) that appeared on the
1972 box of the Parker Brother's game Clue (US Version) ?  Please
provide a hyperlink showing the authenticity of your answer and a
followup bio of the characters if available (for instance, did they go
on to act in television or movies?)

This is a tough one. I've looked around and even the Cluedo fan
websites don't mention who these old actors are. Perhaps you could ask
Hasbro for that information, as they have Parker Brothers under them
now.

Thanks Techtor, I tried looking there as well. 

The question began as a trivial thing to look up on the web after a
brief conversation with a friedn in which I invoked jokingly that it
was "Col. Mustard in the library with a candlestick." I began thinking
about the old Clue game I played as a kid and wondered who those folks
on the box were.

I decided to tack on another $30 as an answer; I don't expect anyone
to be able to answer this....we'll see!

Don't have an answer, but here's a photo of the box cover:
http://www.rm7guy.co.uk/Clue1972Box.jpg

           -welte-ga