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Here's 70-year-old "
Starsky and Hutch" actor
Paul Michael Glaser donning a silver beard and shut-in inspired swag in London this week (left) -- while 62-year-old "
Mork and Mindy" actor
Robin Williams was photographed in New York City with the same fuzzy look back in 2011 (right).
Nanu-nanu!
We're just sayin'.
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