When you beat the game, there will be credits along the margins there are pictures of the little characters and the bigger versions. These are the apparent links from the characters to the larger Corobo's counterparts.

Howser- Howser is just shown as an old man preparing to hit a cow with a pillow.

Kokomo Pine- Kokomo Pine is a teenager working in a fast-food restaurant.

Princess Ferne- Princess Ferne is another one of the Large Corobo's Teachers (King Shishkabeeboo is another.)

Daisy Martel- Daisy Martel is a little girl drowning in the water, apparently about to be eaten by a shark.