In August Wilson's Fences, what kind of person is Cory and how would you characterize him?

The character of Cory in August Wilson's Fences is the son of protagonist Troy and his wife Rose; Cory is also the younger half-brother to Lyons, who doesn't live with them. At the beginning of the play, Cory is passionate about football and the star of his high school's team—facts which characterize him as athletic and ambitious. Despite the fact that Troy was a former baseball star in the Negro League, he refuses to support his son's athletic ambitions, but all Cory wants is to make his dad proud.
That changes, though, when Cory learns of his father's infidelity, and he grows to hate his father instead. At the end of the play, after the narrative jumps forward in time, we see that Cory has grown up to join the marines.