I am from NY and went to school with many famous people family members and thus met some of them:
Met Tony Danza thru his little cousin - Tony is a really GREAT guy, very down to earth.
Met the Stallone clan including sylvester - his family owns a restaurant in Queens NY.
Met Scott Baio thru his cousin Anthony - I went to school with him
Met Ralph Macchio soon after his Karate Kid days because my cousin lived on Long Island and went to school with Ralph's girlfriend, now his wife.
The nicest were Tony and Ralph. Scott and Syvester both very conceited and looked down on me like why would I even give you the time of day?
BTW - my dad grew up in Brooklyn with Robert De Niro