It is the situation, magic, or idea that Barry is growing more like a dog every moment passed. The "problem" is that he is turning into a dog, but he still has to keep his cover as a boy.
The protagonist is Barry O' Neill .the antagonist are the Flynn brothers.
antagonist
If antagonist did not want to harm protagonist, he wouldn't be antagonist. His opposition to protagonist is what makes him antagonist.
Antagonist or villain.
Cory is the antagonist.
Bryce is the antagonist.
who is the antagonist in sounder
Antagonist
The main charachter is usually reffered to as the protagonist(or the good guy) and the person that he/she conflicts with is usually refered to as the antagonist(or the bad guy).
A character who is opposed or competes the main character. * is called the antagonist while the main character is called the protagonist,
who is the antagonist in the story crispin
curley is the antagonist