Robert Parish is the third-oldest NBA player. The oldest player ever to play in the NBA was Nat Hickey who played one game in the 1947–48 season when he was 45 years and 363 days old. Hickey, who was coaching the Providence Steamrollers at the time, decided to activate himself and played in a game for the Steamrollers.hen the Bulls won the 1997 Finals, Parish became the oldest player ever to win the NBA championship. There are 22 players who played in the NBA after they turned 40. The oldest active player is Andre Miller, who is 39 years old.