Who are the main characters in "The Most Dangerous Game" and what are their traits?

The main two characters in "The Most Dangerous Game" are Zaroff and Rainsford.  Zaroff is egotistical, driven, cruel, and delusional (he considers himself fair when he allows Rainsford to attempt to escape after being located once); however, he is also powerful, intelligent, and wealthy.  Rainsford is clever, intelligent, strong, and well-intentioned; he is also determined and basically good.