Henry IV Part 2
Prince Hal (a.k.a. King Henry V)
Even though we don't see as much of Prince Hal in this play as we did in Part 1, he's definitely our protagonist. In Part 1, Prince Hal had to prove his "honor" in combat against Hotspur. Here, in Part 2, the prince must complete the staging of his "reformation" from "wild" Prince Hal to a man fit to rule the kingdom once his father dies. This, of course, requires Hal to make amends with King Henry IV, who has forgotten all about how Hal saved his life at the battle at Shrewsbury (in Part 1) and continues to believe that Hal's unfit to rule.