Norm Macdonald should of been Columbo
No. Comedy is only one aspect of the role.share
There's no such thing as 'should of been'.
It's 'should HAVE been'.
Your post consists of exactly TWO words, no punctuation, no capitalization, no sentence structure.
Your suggestion is equal to your grammatical skills, so at least your expression has congruency - not to mention the DEEP irony your chosen name oozes.
I can't imagine anybody but Peter Falk playing Columbo. He nailed the role.share