Who are the old Candy Land characters and what role do they play in the game?

The old Candy Land characters include King Kandy, Queen Frostine, Lord Licorice, and Mr. Mint. They serve as the rulers of the Candy Land kingdom and guide players through the game, each representing different regions of the candy-filled world. Players aim to reach King Kandy's castle by navigating through the colorful board and overcoming obstacles presented by these characters along the way.