Norm MacDonald
has always been a huge fan of Robin Williams.

The comedian shared a super sweet story about his first encounter with the "Hook" star when MacDonald was just getting started in the industry.

"Hook" Star Dante Basco Pens Heartfelt Letter in Memory of Robin Williams.

Norm and Robin were both slated to appear on the "Late Show with David Letterman," back when Robin was already a household-name and the "Saturday Night Live" alum was still doing stand-up.Fans Remember Robin Williams At Iconic Film & TV Sets.

See the "Billy Madison" star's endearing story about the comedic legend below:

Unacceptable. #RIPRobinWilliams

— Norm Macdonald (@normmacdonald) August 12, 2014

Click here to see more Hollywood reactions to the "Mrs. Doubtfire" star's tragic passing.

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