What is cliff robertson nba?

I'm sorry, but Cliff Robertson is not associated with NBA. He was an American actor who was best known for his roles in movies like "Charly," "Three Days of the Condor," and "Spider-Man." He won an Academy Award for Best Actor for his portrayal of Charly Gordon in the movie "Charly" in 1968. He passed away in 2011 at the age of 88.