Who is Chuck from The House of God and what is their importance?

Chuck is perhaps Roy's best friend and an intern at the House of God. A black man from Chicago, he states he only got this far because of affirmative-action. Chuck is carefree and fun to be around. He's sarcastic like Roy and plays basketball really well, according to Roy. He was apparently semi-pro at basketball at one time and plays basketball with Roy. Chuck is seemingly unflappable and doesn't have many problems in the House of God.