Alan Alda for Atari also:
http://i4.photobucket.com/albums/y144/newagecogline/Alan-Alda-XL.gif

And Isaac Asimov:
http://www.vintagecomputing.com/wp-content/images/retroscan/asimov_trs_1_large.jpg

And http://benheck.com/Games/Atari_800/Miami_Atari_ad.jpg
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Alan Alda did a lot of ads for Atari, but somehow there is almost nothing of them on the Internet.

I remember ALL of those very well. How about George Plimpton for Intellivision?

Trip in the way-back machine ..... William Shatner has real hair and not wearing a girdle.

The writing above 007 sounds like a priceline ad done by William Shatner. I can just hear him saying those words...lol