Who is the enemy of magwitch?

Yes and No. At the beginning of the story Abel Magwitch(Convict) does threaten Pip. Later with his reapperance he does cause pip lost of inner conflicts about morality and guilt. Although Pip does grow affectionate towards Abel as the story progressess to the climax. With that said, Yes i would consider him a minor antagonist since he did contribute to taken away of Pip's innocense. Othe antagonist would be Ms. Havishaam, Estella, Ms. Joe, Mr. Jaggers, Bentley Drummle, ORlick, and Compeyeson