Who is the antagonist in the strange case of Dr. Jekyll and Mr. hyde

Mr. Utterson is the protagonist

Mr. Hyde is the antagonist

Well according to the series of action I think every person in the world Carry inside himself Both character Dr. Jecker and Mr. hide and our role is to adequate the amount of good and evil in our life to get balanced and you can say then don't be gentleman more thatn enough, sorry I know this is not academic answer but this question pulled me, Sorry for inconvenience again